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- di -, (prefix: two; two folds.)
- dia -, (prefix: through; thoroughly; across: apart.)
- diagnosis, n. A determination of the detailed nature of a disease; a scientific determination.
- diagonal, adj. Extending obliquely from corner to corner, or from side to side.
- dialect, n. Variety of a spoken language peculiar to a particular district.
- dialectic, n. Art of logical argumentation.
- dialogue, n. A formal conversation in which two or more take part.
- dialysis, n. A process to separate substances in a solution, based on the differences in diffusion rate.
- dic -, (root: to speak; to declare; as, abdicate, valedictory, malediction.)
- dictator, n. A person having absolute powers of government in a state.
- diction, n. The style of speaking.
- dictum, n. An authoritative statement.
- dif -, (prefix, var. of dis -: apart; away; lacking; not.)
- diffident, adj. Lacking self-trust; shy; reserved.
- diffluent, adj. Tending to flow away; dissolving.
- diffract, v. To bend away (as light); to deflect.
- diffuse, v. To spread; to scatter; to send away. (diffusive, adj.)
- dilate, v. To enlarge in all directions; expand. (dilation, n.)
- dilatory, adj. Tending to cause delay; delaying; tardy.
- dilemma, n. Making a choice between two undesired alternatives; an awkward situation. (lemma -: a premise.)
- dilute, v. To make more fluid or less concentrated by admixture with something.
- dirig -, (root: to direct; as, dirigible.)
- dirigible, adj. Capable of being directed, governed, or steered.
- dis -, (prefix: apart; away; removal; reversal; lacking; not.)
- disarrange, v. To throw out of order.
- disarray, n. Disorder; confusion.
- disaster, n. Any grave event causing great damage or suffering; adversity. (aster -: a star.)
- discernible, adj. Perceivable.
- discerning, adj. Having insight; quick in judgement.
- discreet, adj. Cautious and judicious; prudent. (creet -, var. of cern -: apart.)
- discrepancy, n. Lack of consistency; disparity. (dis -: apart.) (crep -: to make a noise.)
- discrete, adj. Unconnected; separate. (cret -: to grow.)
- discursive, adj. Passing from one subject to another; rambling.
- disjunctive, adj. Helping or serving to disconnect or separate.
- disparage, v. To regard or speak of slightingly; to belittle. (dis -: not.) (par -: equal in rank.)
- disparate, adj. Entirely different; completely dissimilar.
- disperse, v. To scatter; to drive away. (dispersion, n.) (dis -: away.) (sperse -: to scatter.)
- dispossess, v. To deprive of actual occupancy, especially of real estate.
- disputation, n. A controversy.
- disrepute, n. Loss of good reputation; discredit.
- dissent, n. Disagreement.
- dissentient, n. One who disagrees.
- dissident, adj. Disagreeing; dissenting.
- dissipate, v. To disperse or disappear. (sipate -: to scatter.)
- dissipation, n. The state of being dispersed or scattered.
- dissonant, adj. Harsh or disagreeable in sound.
- dissuade, v. To advise (someone) to change plans or intentions. (suade -: advice.)
- distend, v. To stretch out or expand in every direction.
- distensible, adj. Capable of being stretched out or expanded in every direction.
- distinction, n. A note or designation of honor, officially recognizing superiority or success in studies.
- distort, v. To twist into an unnatural or irregular form. (distortion, n.)
- distract, v. To turn away the attention of; to divert; to confuse.
- distrain, v. To subject a person to distress.
- distrait, adj. Absent-minded.
- distraught, adj. Bewildered; troubled; upset. (traught -, var. of tract -: to draw.)
- divagation, n. Digression. (di -: apart.) (vaga -: to wander.)
- divergent, adj. Tending in different directions; deviating.
- diversion, n. The act of diverting; recreation; a pastime.
- diversity, n. Dissimilitude; variety. (di -: apart.)
- divert, v. To turn from the accustomed course or a line of action already established.
- divest, v. To strip, specifically of clothes, ornaments, or accouterments; to deprive. (di -: remove.)
- divulge, v. To reveal (something private or secret); to disclose.
- doc -, (root: to teach; to instruct, docile.)
- docile, adj. Easy to manage; yielding; obedient.
- dol -, (root: to grieve; as, codolence, dolesome.)
- doleful, adj. Melancholy; sorrowful.
- dolorous, adj. Sorrowful; causing grief; doleful.
- dom -, (root: to rule; authority; as, dominance.)
- domesticity, n. Life in or fondness for one's home and family. (domes -: a house.)
- domicile, n. A house; a dwelling. (v. To dwell.)
- dominance, n. Ascendency.
- don -, (root: to give; as, condone, donator, pardon.)
- donator, n. One who makes a donation or present.
- dorm -, (root: to sleep; inactive.)
- dormancy, n. The state of being inactive; latency; quiescence.
- du -, (prefix: two; two folds.)
- dubious, adj. Doubtful.
- duc -, (root: to lead; a path; as, ductile, educe, viaduct.)
- ductile, adj. Capable of being drawn out, as into wire or a thread.
- dupl -, (root: double; as duplicate, duplicity.)
- duplicity, n. Double-dealing; deception.
- dur -, (root: hard; strength; to last; as endure; obdurate.)
- duration, n. The period of time during which anything lasts.
- dynam -, (root: power; strength.)
- dynamic, adj. Active; effective.
- dynasty, n. A succession of sovereigns in one line of family descent governing the same country.
- dys -, (prefix: ill or bad; difficult.)
- dysfunction, n. (Med.) Impaired functioning of an organ.
- dyslogistics, a. Uncomplimentary.
- e -, (prefix: var. of ex -: outside; out of.)
- ec -, (prefix: var. of ex -: out of; as, eclectic, eclipse; ecstatic.)
- eccentric, adj. Peculiar; odd; abnormal; irregular.
- eclat, n. A striking effect; a brilliant success.
- eclectic, adj. Selecting from various sources.
- ecstasy, n. Rapturous excitement; exaltation; gladness; frenzy.
- edict, n. A rule of action; an official decree publicly proclaimed. (dic -: to say.)
- edifice, n. A (stately) building.
- edify, v. To build up, or strengthen, especially in morals or religion.
- educe, v. To draw out; to bring into view.
- ef -, (prefix, var. of ex -: out; from.)
- efface, v. To obliterate; to erase. (ef -: out.) (face -: face.)
- effectual, adj. Efficient; effective; producing intended effect.
- effervescent, adj. Bubbly; spirited. (effervescence, n.) (fervesce -: to boil.)
- efficacious, adj. Effective; effectual.
- effigy, n. An image; a duplication. (figy -: to fashion.)
- effluent, adj. Flowing out; emitted. (effluence, n.)
- efflux, n. Outward flow; effluence.
- effrontery, n. Unblushing impudence; shamelessness.
- effuse, v. To pour forth; to flow out.
- ego -, (root: I; self; as, egomania.)
- egocentric, adj. Self-centered. (n. an egocentric person.)
- egomania, n. Excessive egotism.
- egoism, n. The pure selfishness.
- egregious, adj. Extremely bad. (standing out of the normal flock.) (e -: out of.)
- egress, n. Any place of exit. (v. To exit) (e -: out )
- ejaculate, v. To utter suddenly; to exclaim. (ejaculation, n.) (e -: out.) (jacula -: to throw.)
- eject, v. To expel. (e -: out.)
- elaboration, n. Development or improvement in details. (elaborate, v.) (e -: thoroughly.)
- elate, v. To make happy; to raise the spirits of.
- elated, adj. Joyful.
- electr -, (prefix: electricity.)
- electrify, v. To apply electricity to; to thrill.
- elision, n. The striking out of a part of a word for ease of pronunciation, as in o'er, 'tis, etc.
- elite, n. The best; those selected. (e -: out.) (lite -: to choose.)
- elocution, n. The art of public speaking. (e -: out.)
- elongate, v. To stretch; to lengthen.
- eloquence, n. Expressiveness; a persuasive speech.
- eloquent, adj. Having the ability to express emotion or feeling in lofty and impassioned speech.
- elucidate, v. To make clear; to illustrate. (e -: out.) (luc -: to lighten.)
- elude, v. To evade; to escape notice; to get away by cleverness.
- elusion, n. Evasion.
- elute, v. To wash out. (lut -; to wash.)
- em -, (prefix: in; into; on; to make.)
- embellish, v. To make beautiful; to decorate. (em -: to make.)
- emblaze, v. To make bright; to kindle.
- embody, v. To bring a bodily form to; to incorporate.
- embolden, v. To give courage to; to make bold.
- embrace, v. To hug; to accept.
- emissary, n. The person who is sent on a mission; a secret agent. (mis -: to send.)
- emit, v. To send or give out.
- empathy, n. Understanding of another person. ( empathize, v.) (empathic, adj.) (em -: in.)
- emphasis, n. Any special impressiveness added to an utterance or act, or stress laid upon some word.
- empirical, adj. Based on experiences or experimental facts; not theoretical.
- en -, (prefix: in; into; on; to make.)
- enact, v. To make into law, as by legislative act; to act.
- endear, v. To cause to be loved. ( endearment, n. ) (en -: to make.)
- endemic, adj. Confined to a particular area or a specific group of people. (dem -: people.)
- endo -, (prefix: in; into; within.)
- endocardium, n. The endothelial lining membrane of the heart.
- endocrine, adj. Secreting internally (said of glands.)
- endogamy, n. The tradition or social rule of marrying within a tribe. (opposite of exogamy.)
- endogen, n. A plant that increases in size by the inter- calation of new cellular and vascular tissue.
- endorse, v. To assign; to support; to approve.
- endue, v. To endow with some quality, gift, or grace, usually spiritual.
- endurance, n. The ability to suffer pain, distress, hardship, or stress of any kind without succumbing.
- enervate, v. To render ineffective or inoperative; to weaken. (e -: out.) (nervate -: strength.)
- enfeeble, v. To debilitate; to weaken. ( en -: to make.)
- enfranchise, v. To endow with a privilege, especially with the right to vote.
- engender, v. To produce; to cause to exist. (en -: in.) (gen -: race; birth.)
- enjoin, v. To command.
- ensue, v. To follow; to result from (a previous act.) (sue -, var. of sequi -: to follow.)
- entangle, v. To involve in difficulties, confusion, or complications.
- enumerate, v. To name one by one.
- enunciate, v. To speak distinctly.
- envisage, v. To imagine; to form an mental image.
- envoy, n. An agent representing a government. (en -, var. of in -: on.) (voy -, var. of via-: road.)
- ephemeral, adj. Short-lived; transient; fleeting.
- epi -, (prefix: upon; above; over.)
- epicure, n. One who has a refined taste in food and drinks; a connoisseur.
- epidemic, n. Widespread occurrence of a disease in a certain region.
- epigram, n. A short, witty saying or thought.
- epilogue, n. A short speech at the conclusion of a literary work or drama.
- equi -, (prefix: equal.)
- equilateral, adj. Having all the sides equal. (n. An equilateral figure.)
- equivocal, adj. Ambiguous; doubtful; obscure; deceptive.
- equivocate, v. To use words of double meaning; to mislead.
- eradicate, v. To destroy thoroughly; to wipe out; to extirpate.
- err -, (root: erring; wandering; as, aberrant.)
- errant, adj. Deviating from the proper course; erring; wandering.
- erratic, adj. Irregular; not normal; unpredictable.
- erroneous, adj. Incorrect; false.
- eu -, (prefix: good; well; agreeable.)
- eugenic, adj. Pertaining to the development and improvement of race.
- eulogistic, adj. Praising.
- eulogize, v. To speak or write a laudation of a person's life or character.
- eulogy, n. A spoken or written laudation of a person's life or character.
- euphemism, n. The substitution of a pleasant phrase for a less pleasant one. (euphemistic, adj.) (phem -: to speak.)
- euphonious, adj. Characterized by agreeableness of sound; harmonious.
- euphoria, n. A feeling of well-being; a joyful mood.
- ev -, (root: time; period of time; age; as, longevity; medieval.)
- evacuate, v. To vacate; to empty. (e -: out.)
- evidential, adj. Indicative.
- evince, v. To make evident; to show clearly.
- evoke, v. To call or summon forth. (e -: out of.)
- evolution, n. Development or growth.
- ex -, (prefix: out of; from; beyond; thoroughly; former.)
- exacerbate, v. To make more sharp or severe; to worsen.
- excerpt, n. An extract or selection from written matter. (cerpt -: to seize.)
- exhale, v. To breathe forth.
- exhort, v. To warn; to caution. (hort -: to urge.)
- exo -, (prefix: outside; outer.)
- exogamy, n. The social rule of marrying outside the tribe. (opposite of endogamy.) (exogamous, adj.)
- exonerate, v. To relieve or vindicate from accusation, imputation, or blame.
- exorbitant, adj. Going beyond usual and proper limits.
- expiate, v. To make satisfaction or amends for. (ex -: completely.) (piate -:to appease.)
- explicit, adj. Definite; open.
- explode, v. To cause to burst in pieces by force from within.
- exploit, n. A brave deed or action.
- exploit, v. To use selfishly for one's own end.
- explore, v. To examine in great details; to search thoroughly.
- expunge, v. To erase; to remove. (punge -: to prick.)
- expurgate, v. To purify by removing improper material; to cleanse.
- exquisite, adj. Elegant; extremely beautiful.
- extant, adj. Still existing and known.
- extemporaneous, adj. Done or made without much or any preparation.
- extempore, adv. Without studied or special preparation.
- extinct, adj. Being no longer in existence.
- extinguish, v. To render extinct.
- extirpate, v. To destroy completely; to root out. (ex -: out.) (stirp -: root.)
- extort, v. To obtain by violence, threats, compulsion, or the subjection of another to some necessity.
- extra -, (prefix: out of; ouside; beyond.)
- extradition, n. The surrender by a government of a person accused of crime to the justice of another government.
- extrude, v. To drive out or away. (trude -: to thrust.)
- fac -, (root: to do; to make; as, facilitate, manufacture.)
- facile, adj. Not difficult to do; effortless.
- facilitate, v. To make easy.
- facility, n. Ease.
- facsimile, n. An exact copy or reproduction.
- factious, adj. Turbulent; causing disagreement.
- factitious, adj. Artificial.
- fal -, (root: to err; to mislead; as, infallible.)
- fallacious, adj. Illogical; misleading.
- fallible, adj. Capable of erring; liable to be mistaken.
- fec -, (root: to do; to act; to make; as, affect, effect.)
- fer -, (root: to bring; to carry; to bear; as, confer, infer.)
- fic -, (root: to do; to act; to make; as, fiction, efficacious.)
- fiction, n. A made or fabricated story; that which is invented.
- fictitious, adj. Created or formed by the imagination; not genuine.
- fid -, (root: faith; trust; as, confidence, perfidy.)
- fidelity, n. Loyalty.
- fiducial, adj. Indicative of faith or trust.
- fil -, (root: son or daughter; as, affiliate.)
- filial, adj. Like a son or daughter. (filialness, n.)
- filiate, v. To adopt as a child. (filiation, n.)
- fin -, (root: end; limit; as, definite, confine.)
- finale, n. Concluding performance; the end.
- flec -, (root: to bend; to turn; as, reflect, deflection, inflect.)
- flection, n. The act of bending.
- flex -, (root, var. of flec -: to bend; to turn; as, inflexible.)
- flexible, adj. Pliable; bendable.
- flict -, (root: to strike; as afflict, conflict.)
- flu -, (root: to flow; water; as, influence; affluent; afflux.)
- fluent, adj. Able to speak or write clearly and easily.
- fluvial, adj. Pertaining to a river.
- flux, n. A state of constant movement, change, or renewal.
- fore -, (prefix: before; beforehand; in front; at front; the front part of.)
- forebear, n. An ancestor.
- foresee, v. To discern beforehand.
- foretell, v. To predict.
- form -, (root: shape; form; appearance; as, conform, reform, uniform.)
- formidable, adj. Difficult to accomplish.
- fort -, (root: strength; power; as comfortable. )
- forte, n. A strong point.
- fortify, v. To provide with defensive works.
- fortitude, n. Patient courage; strength.
- fortu -, (root: accidental; luck; chance; as, fortunate.)
- fortuitous, adj. Accidental; lucky.
- fortuity, n. An accident; a chance.
- frag -, (root: to break; as, fragile.)
- fragile, adj. Easily broken.
- fragment, n. A piece broken off; a part of a whole.
- frater -, (root: brother.)
- fraternal, adj. Brotherly. (fraternity, n.)
- fraternize, v. To become close friends; to associate as brothers.
- fug -, (root: to escape; to drive away; as, refugee, centrifuge; vermifuge.)
- fugacious, adj. Transient; temporary.
- fugitive, adj. Fleeing. (n. A runaway.)
- fus -, (root: to pour; to melt; to spread; as, effuse; suffuse.)
- fuse, v. To unite or blend as by melting together. ( fusion, n. )
- fusion, n. The act or process of changing from a solid into a liquid by the agency of heat.
- gam -, (root: marriage; rule or state of marriage; as, bigamy, exogamy.)
- gen -, (root: race; kind; birth; as, genesis, homogeneous, primogeniture.)
- genealogist, n. A tracer of pedigrees.
- genealogy, n. A family history; a list, in the order of succession, of ancestors and their descendants.
- generalize, v. To draw general inferences.
- generate, v. To produce or cause to be.
- genesis, n. Creation; beginning.
- gest -, (root: to bring; to carry; to bear; as, congest, digest, ingest.)
- gestate, v. To form and develop in an early state, as a concept.
- gestation, n. Pregnancy; a prenatal state.
- gni -, (root: to know; knowledge; as, cognizant, incognito, recognize.)
- gnome, n. An imaginary dwarfed people; a maxim.
- gnomen -, (root: name; as, agnomen, cognomen, ignominy.)
- gnor -, (root: to know; to learn; as, ignorant.)
- gnos -, (root: to know; knowledge; as, agnostic, diagnosis, prognosis.)
- gon -, (root: angle; as diagonal, petagon.)
- grad -, (root: a step; to go; as, degrade, gradient.)
- gradation, n. A step, degree, rank, or relative position in an order or series.
- gradient, adj. Moving or advancing by steps. (n. A slope.)
- gram -, (root: writing; a letter; as, diagram; epigram.)
- grammar, n. The art of speaking and writing a language correctly.
- graph -, (root: writing; description; as, telegraph, photograph.)
- graphic, adj. Of or pertaining to the art of writing; clearly described.
- grat -, (root: grace; pleasing; as, congratulation, gratify.)
- gratification, n. Satisfaction.
- gratuitous, adj. Unnecessary; not called for by the circumstances.
- gratuity, n. That which is given without demand or claim; a tip; a donation.
- greg -, (root: crowd; flock; to get together; as, aggregate, egregious, segregate.)
- gregarious, adj. Not habitually solitary or living alone; friendly; sociable.
- gress -, (root: to step; to go; as, aggresion, degress, digress, egress, progress, transgress.)
- gyn -, (root: woman; as, polygynous.)
- gynecocracy, n. (Politics) Rule by women.
- gynecology, n. The science that deals with the functions and diseases peculiar to women.
- gyr -, (prefix: to spin; to rotate.)
- gyrate, v. To revolve; to rotate.
- gyrostat, n. Modification of the gyroscope, used to illustrate the dynamics of rotating bodies.
- hect -, (prefix: one hundred.)
- hectogram, n. A weight in the metric system.
- helio -, (prefix: solar; sun.)
- heliocentric, adj. Having the sun as the center.
- helioscope, n. A kind of telescope in which the eyes are protected from injury while observing the sun.
- hemi -, (prefix: half.)
- hemicircle, n. A half circle.
- hemisphere, n. A half of the globe, or a map or projection of the half on a plane surface.
- hepta -, (prefix: seven.)
- her -, (root: to stick; as, adhere, inherence.)
- hes -, (root: to stick; as, adhesion, cohesive.)
- hesitation, n. Vacillation.
- heter -, (prefix: different, other.)
- heterodox, adj. Departing from the commonly accepted doctrine or opinion.
- heterogeneity, n. Unlikeness of constituent parts.
- heteromorphic, adj. Deviating from the normal form or standard type.
- hexa -, (prefix: six; six folds.)
- hexagon, n. A figure with six angles.
- hexahedron, n. A solid body having six sides.
- hier -, (prefix: holy; sacred.)
- hierarch, n. One who has authority in religious things, as a bishop.
- hierarchy, n. A series of groups arranged according to the ranks.
- homo -, (prefix: same.)
- homogeneous, adj. Made up of similar parts or elements.
- homologous, adj. Identical in nature, make-up, or relation.
- homonym, n. A word spelled and pronounced like another, but different in meaning.
- hyper -, (prefix: above; beyond; over; excessive.)
- hyperbole, adj. An excessive exaggeration.
- hypercritical, adj. Faultfinding; excessively critical.
- hypersensitive, adj. Excessively sensitive.
- hypertension, n. Excess of tension; the condition of high blood pressure.
- hypno -, (prefix: sleep.)
- hypnosis, n. An artificial trance-sleep.
- hypnotic, adj. Tending to produce sleep.
- hypo -, (prefix: under; below; lacking; less than normal state.)
- hypotension, n. Lack of tension; the condition of low blood pressure.
- ign -, (prefix: fire.)
- igneous, adj. Pertaining to fire.
- ignite, v. To kindle or set on fire.
- ignitible, adj. Easily kindled or excited.
- ignoble, adj. Low in character or purpose. (i -: not.)
- ignominious, adj. Shameful. (i -: not.)
- ignominy, n. Shame; disgrace; infamy. (i -: not)
- ignorant, adj. Uniformed; lacking of knowledge. (ignorance, n.) (i -: not)
- il -, (prefix, var. of in -: in; into; to make; not; without.)
- illicit, adj. Unlawful. (il -: not.) (licit -: to allow.)
- illumine, v. To make bright or clear.
- illusive, adj. Deceptive.
- illustrate, v. To make clear by examples; to provide pictures, as to books. (il -: to make.)
- illustrious, n. Distinguished; renowned; glorious.
- im -, (prefix, var. of in-: in; into; toward; within; on; not; without.)
- immaculate, adj. Without spot or blemish.
- immutable, adj. Unchangeable.
- impalpable, adj. Not understandable; vague; intangible. (palpa -: to touch; to sense.)
- impeccable, adj. Blameless.
- impecunious, adj. Having no money.
- impediment, n. A barrier; an obstruction; a stumbling-block. (pedi -: foot.)
- impel, v. To drive or urge forward.
- imperceptible, adj. Undiscernible.
- imperil, v. To endanger. (peri -: risk; danger.)
- imperious, adj. Insisting on obedience; domineering. (imperial -: lordly.)
- impertinence, n. Rudeness. (impertinent, adj.) (tin -: to hold.)
- impervious, adj. Impenetrable; incapable of being affected. (per -: through.) (via -: way; to pass.)
- impetuous, adj. Impulsive; rash. (im -: upon.) (pet -: to seek; to rush upon.)
- impious, adj. Characterized by irreverence or irreligion; disrespectful toward God.
- implacable, adj. Not flexible; unbending; incapable of being pacified. (placa -: to please.)
- implicit, adj. Implied; understood, but not expressed in words. (plicit -: to fold.)
- imponderable, adj. Weightless; that can not be measured.
- importune, v. To harass with persistent demands; to beg. (opposed to opportune -: to offer a port.)
- imposing, adj. Impressive; grand.
- imposture, n. Deception by means of false pretenses; assuming a false identity.
- impotent, adj. Destitute of or lacking in power, physical, moral, or intellectual.
- impoverish, v. To make indigent or poor.
- impracticable, adj. Not feasible.
- imprecation, n. A curse; a malediction. (precat -: to pray.)
- impregnable, adj. That can not be taken by assault; unconquerable.
- imprescriptible, adj. Incapable of being either lost or acquired by usage.
- impressionable, adj. Emotional.
- impromptu, n. Anything done or said on the impulse of the moment. (adj. Offhand; done without preparation.)
- improvise, v. To do something without preparation. (pro -: before.) (vis -: to see.)
- imprudent, adj. Heedless; disrespectful. (im -: not.)
- impugn, v. To assail with arguments; to challenge as false; to contradict.
- impunity, n. Freedom from punishment. (im -: not)
- impute, v. To attribute a wrong doing to a person. (pute -: to considr.)
- in -, (prefix: in; into; toward; within; on; not; without.)
- inadvertent, adj. Accidental; unintentional.
- inalienable, adj. Not transferable.
- inanimate, adj. Destitute of animal life; dull.
- inapt, adj. Awkward or slow.
- inaugurate, v. To induct into a place of trust with solemnity and suitable ceremonies.
- inborn, adj. Implanted by nature.
- inbred, adj. Innate; inborn; natural; native.
- incandescent, adj. White or glowing with heat.
- incapacitate, v. To deprive of power or ability; to disable.
- incarcerate, v. To imprison.
- incarnate, v. To be in human form. (also adj.) (incarnation, n.)
- inception, n. The beginning.
- inceptive, adj. Beginning.
- incessant, adj. Unceasing; without pause.
- incipience, n. Beginning.
- incipient, adj. Initial.
- incitement, n. That which moves to action, or serves as an incentive or stimulus.
- incognito, adj. Disguised; under an assumed name or identy, as to avoid attention.
- incomprehensible, adj. Not understandable.
- incongruous, adj. Unsuitable for the time, place, or occasion; inappropriate.
- inconsequent, adj. Unreasonable.
- incontrovertible, adj. Indisputable; certain.
- incorrigible, adj. Incapable of being corrected. (corrig -: correct.)
- incredulous, adj. Skeptical; disbelieving.
- incriminate, v. To charge with a crime.
- inculpable, adj. Not culpable; not blamable.
- inculpate, v. To blame; to accuse of fault. (opposed to exculpate.)
- indelible, adj. That can not be erased; incapable of being removed.
- indicant, adj. That which points out.
- indigence, n. Poverty.
- indigenous, adj. Native. (indi -, var. of indo -.) (gen -: to be born.)
- indigent, adj. Extremely poor. (ind -, var. of in -: in.) (ige -: lacking.)
- indignant, adj. Angry aroused by meanness or unjust treatment.
- indignity, n. Unmerited contemptuous conduct or treatment.
- indiscerpible, adj. Exempt from dissolution.
- indiscreet, adj. Lacking wise judgment.
- indispensable, adj. Necessary or requisite for the purpose.
- indisputable, adj. Without question.
- indistinct, adj. Vague.
- indolence, n. Laziness.
- indolent, adj. Habitually inactive or idle; lazy.
- indomitable, adj. Unconquerable; unyielding.
- indubitable, adj. Unquestionable; certain.
- induce, v. To lead by persuasion; to bring about.
- induct, v. To bring in.
- inductile, adj. Not ductile; unyielding; not tractable.
- indulgence, n. The yielding to inclination, passion, desire, or propensity in oneself or another.
- indurate, v. To become harden or unfeeling; to make hard; to make stubborn.
- ineffable, adj. Unutterable; unspeakable.
- inefficacious, n. Lacking adequate force or power to produce an intended result.
- inefficiency, n. Lack of efficiency.
- ineligible, adj. Not suitable to be selected or chosen.
- ineluctable, adj. Inevitable; inescapable.
- inenarrable, adj. Not narratable; not describable.
- inept, adj. Not fit or suitable.
- inestimable, adj. Beyond measure; incapable of being estimated.
- inevitable, adj. Unavoidable.
- inexpedient, adj. Unadvisable.
- inexplicable, adj. Such as can not be made plain.
- inexpugnable, adj. Unconquerable; impregnable.
- inextricable, adj. Incapable of being freed; unsolvable.
- infest, v. To be present in such numbers as to be a source of annoyance, trouble, or danger.
- infidel, n. One who denies the existence of God.
- inflect, v. To modulate, as the voice.
- influence, n. Ability to sway the will of another.
- influx, n. Infusion; a flowing in.
- infraction, n. The breaking of a law.
- infrangible, adj. Not breaking or capable of being broken into parts.
- infuse, v. To instill, introduce, or inculcate, as principles or qualities.
- ingenious, adj. Clever; creative.
- ingenuity, n. Cleverness in contriving, combining, or originating.
- ingenuous, adj. Candid, frank, or open in character or quality; naive.
- ingest, v. To take (food) into the body.
- inherent, adj. Intrinsic.
- iniquitous, adj. Unjust; wicked.
- iniquity, n. Gross wrong or injustice.
- injunction, n. An order; a command.
- injurious, adj. Harmful.
- innocuous, adj. Harmless.
- inoculate, v. To implant a virus within human body in order to produce immunity.
- inopportune, adj. Unsuitable or inconvenient, especially as to time. (in -: not.)
- inquisitive, adj. Given to questioning, especially out of curiosity.
- inquisitor, n. One who makes an investigation.
- inscription, n. The words engraved; the dedication of a book.
- insensate, adj. Without feeling.
- insensible, adj. Imperceptible.
- insentient, adj. Lacking the power of feeling or perceiving.
- inseparable, adj. That can not be separated.
- insinuate, v. To imply; to suggest.
- insipid, adj. Tasteless; dull.
- insistent, adj. Urgent.
- insolence, n. Pride or haughtiness exhibited in contemptuous and overbearing treatment of others.
- insomnia, n. Sleeplessness.
- insouciant, adj. Carefree.
- inspire, v. To fill with feeling or ideas; to influence by heavenly instructions; to inhale. (inspiration, n.)
- insuperable, adj. Invincible; not capable of being conquered.
- insurgent, adj. Rebellious.
- insurmountable, adj. Incapable of being conquered; invincible.
- integrity, n. Uprightness of character and soundness of moral principle.
- integument, n. Any outer covering or envelope; a shell.
- intemperate, adj. Immoderate; excessive; addicted to alcoholic liquors.
- intensive, adj. Adding emphasis or force. (intensity, n.)
- intent, adj. Earnest. (n. Meaning; an intention.) (intend, v.)
- inter -, (prefix: between; among; mutually; together.)
- interact, v. To act reciprocally.
- intercede, v. To mediate between persons.
- intercept, v. To interrupt the course of.
- intercession, n. Entreaty in behalf of others.
- intercessor, n. A mediatos.
- interchange, n. Alternation.
- intercross, v. To cross the course of each other.
- interdict, n. Authoritative act of prohibition.
- interference, n. The act of intervening.
- interim, n. Time between acts or periods.
- interjection, n. The part of speech that expresses sudden emotion, excitement or feeling, as alas!
- interlocutor, n. One who takes part in a conversation or oral discussion.
- interlocutory, adj. Pertaining to a dialog; (Law) pronounced during the course of an action; not final.
- interlude, n. A short musical passage played between the acts of an opera; n interval between events; a pause.
- intermezzo, n. (Music) An interlude; a short composition played between the acts of a play.
- intermit, v. To cause to cease temporarily.
- internecine, adj. Mutually destructive.
- interregnum, n. Pause; interval.
- interrogate, v. To examine formally by questioning.
- interrogative, adj. Having the nature or form of a question.
- interrogatory, n. A question or inquiry.
- intervene, v. To interfere; to come between two things.
- intra -, (prefix: in; into; within.)
- intractable, adj. Hard to manage.
- intramural, adj. Situated within the walls of a city; taking place within a college. (mur -: wall.)
- intransigent, adj. Stubborn; refusing to give in.
- intricacy, n. Perplexity. (tric -: difficulties.)
- intricate, adj. Entangled; hard to resolve; difficult to understand.
- intrigue, n. A secret plot or scheme. (v. To incite great interest; to puzzle; to carry a secret plot.)
- intrinsic, adj. Inherent.
- intro -, (prefix: within; inward.)
- introgression, n. Entrance.
- intromission, n. Admission.
- intromit, v. To insert.
- introspect, v. To look into.
- introspection, n. The act of observing and analyzing one's own thoughts and feelings.
- introspective, adj. Looking into oneself.
- introversion, n. The act of turning or directing inward, physically or mentally.
- introvert, v. To turn within; a person who is shy or reserved.
- intrude, v. To enter without permission; to encroach.
- inundate, v. To fill with an overflowing abundance; to flood.
- inundation, n. Flood.
- invasion, n. The entering of a country by a hostile force; attack; encroachment; infringement.
- invective, n. A severe denunciation; vituperation; abuse. (vect -, var. of veigh -: to carry.)
- inveigh, v. To utter vehement censure; to exclaim against someone. (veigh -: to carry.)
- inveigle, v. To wheedle; to win over by flattery. (veigle -: to blind; to lure.)
- invigorate, v. To animate; to fill with energy. (in -: in.) (vigor -: vigor.)
- invincible, adj. Incapable of being conquered, subdued, or overcome.
- inviolable, adj. Incapable of being injured or disturbed. (viol -: violate.)
- invocation, n. A calling upon or for in supplication.
- invoke, v. To call upon; to summon; to bring about. (invocation, n.)
- involute, adj. Involved; complicated; curled in a spiral.
- involve, v. To draw into entanglement, literally or figuratively.
- invulnerable, adj. Incapable of being wounded or hurt; immune to attack. (vulner -: to wound.)