exist (v.) Look up exist at Dictionary.com
c.1600, from French exister (17c.), from Latin existere/exsistere "to step out, stand forth, emerge, appear; exist, be" (see existence). "The late appearance of the word is remarkable" [OED]. Related: Existed; existing.
existence (n.) Look up existence at Dictionary.com
late 14c., "reality," from Old French existence, from Medieval Latin existentia/exsistentia, from existentem/exsistentem (nominative existens/exsistens) "existent," present participle of Latin existere/exsistere "stand forth, appear," and, as a secondary meaning, "exist, be;" from ex- "forth" (see ex-) + sistere "cause to stand" (see assist).
existent (adj.) Look up existent at Dictionary.com
1560s, a back-formation from existence, or else from Latin existentem/exsistentem (nominative existens/exsistens), present participle of existere/exsistere (see existence).
existential (adj.) Look up existential at Dictionary.com
1690s, "pertaining to existence," from Late Latin existentialis/exsistentialis, from existentia/exsistentia (see existence). As a term in logic, from 1819; in philosophy, from 1937, tracing back to the Danish works of Kierkegaard (see existentialism). Related: Existentially.
existentialism (n.) Look up existentialism at Dictionary.com
1941, from German Existentialismus (1919), replacing Existentialforhold (1849), ultimately from Danish writer Søren Kierkegaard (1813-1855), who wrote (1846) of Existents-Forhold "condition of existence," existentielle Pathos, etc. (see existential), and whose name means, literally, "churchyard."
existentialist (adj.) Look up existentialist at Dictionary.com
1945, from French existentialiste, from existentialisme (1940); see existentialism. Related: Existentialistic.
exit (n.) Look up exit at Dictionary.com
1530s, from Latin exit "he or she goes out," third person singular present indicative of exire "go out," from ex- "out" (see ex-) + ire "to go" (see ion). Also from Latin exitus "a leaving, a going out," noun of action from exire. Originally in English a Latin stage direction (late 15c.); sense of "door for leaving" is 1786. Meaning "departure" (originally from the stage) is from 1580s. The verb is c.1600, from the noun; it ought to be left to stage directions and the clunky jargon of police reports. Related: Exited; exiting.
Those who neither know Latin nor read plays are apt to forget or not know that this is a singular verb with plural exeunt. [Fowler]
exo- Look up exo- at Dictionary.com
word-forming element meaning "outer, outside, outer part" used in scientific words (such as exoskeleton), from Greek exo "outside," related to ex "out of" (see ex-).
Exocet (n.) Look up Exocet at Dictionary.com
1970, proprietary name of a rocket-propelled short-range guided missile, trademarked 1970 by Société Nationale Industrielle Aerospatiale, from French exocet "flying fish" (16c.), from Latin exocoetus, from Greek exokoitos "sleeping fish, fish that sleeps upon the beach," from exo "outside" (see exo-) + koitos "bed."
Exodus Look up Exodus at Dictionary.com
late Old English, the second book of the Old Testament, from Latin exodus, from Greek exodos "a military expedition; a solemn procession; departure; death," literally "a going out," from ex- "out" (see ex-) + hodos "way" (see cede). General sense (with lower-case -e-) is from 1620s.
exogamy (n.) Look up exogamy at Dictionary.com
1865, Modern Latin, literally "outside marriage," from exo- + -gamy. Related: Exogamous. Apparently coined by Scottish anthropologist John Ferguson McLennan (1827-1881) in "Primitive Marriage" (see endogamy).
exogenous (adj.) Look up exogenous at Dictionary.com
1830, from Modern Latin exogenus (on model of indigenus); see exo- + -genous.
exonerate (v.) Look up exonerate at Dictionary.com
mid-15c., from Latin exoneratus, past participle of exonerare "remove a burden, discharge, unload," from ex- "off" (see ex-) + onerare "to unload; overload, oppress," from onus (genitive oneris) "burden" (see onus). Related: Exonerated; exonerating.
exoneration (n.) Look up exoneration at Dictionary.com
1630s, from Latin exonerationem (nominative exoneratio) "an unloading, lightening," noun of action from past participle stem of exonerare (see exonerate).
exorable (adj.) Look up exorable at Dictionary.com
1570s, "susceptible of being moved by entreaty" (a word much rarer than its opposite and probably used now only as a back-formation from it), from Latin exorabilis, from exorare "to persuade" (see inexorable). Related: Exorably.
exorbitance (n.) Look up exorbitance at Dictionary.com
mid-15c., from exorbitant + -ance.
exorbitant (adj.) Look up exorbitant at Dictionary.com
mid-15c., a legal term, "deviating from rule or principle, eccentric;" from Latin exorbitantem (nominative exorbitans), present participle of exorbitare "deviate, go out of the track," from ex- "out of" (see ex-) + orbita "wheel track" (see orb). Sense of "excessive, immoderate" is from 1620s; of prices, rates, etc., from 1660s. Related: Exorbitantly.
exorcise (v.) Look up exorcise at Dictionary.com
c.1400, "to invoke spirits," from Old French exorciser (14c.), from Late Latin exorcizare, from Greek exorkizein "banish an evil spirit; bind by oath" (see exorcism). Sense of "calling up evil spirits to drive them out" became dominant 16c. A rare case where -ise trumps -ize on both sides of the Atlantic, perhaps by influence of exercise. Related: Exorcised; exorcising.
exorcism (n.) Look up exorcism at Dictionary.com
early 15c., "a calling up or driving out of evil spirits," from Late Latin exorcismus, from Greek exorkismos, from exorkizein "exorcize, bind by oath," from ex "out of" (see ex-) + horkizein "cause to swear," from horkos "oath." Earlier in the same sense was exorcization (late 14c.).
exorcist (n.) Look up exorcist at Dictionary.com
"one who drives out evil spirits," late 14c., from Late Latin exorcista, from Ecclesiastical Greek exorkistes "an exorcist," from exorkizein (see exorcism).
exoskeleton (n.) Look up exoskeleton at Dictionary.com
1847, from exo- + skeleton. Introduced by English anatomist Sir Richard Owen (1804-1892).
exoteric (adj.) Look up exoteric at Dictionary.com
1650s, from Late Latin exotericus, from Greek exoterikos, from exotero, comparative of exo (see exo-).
exothermic (adj.) Look up exothermic at Dictionary.com
1879, from French exothermique (1879), from exo- + thermique, ultimately from Greek therme "heat" (see thermal).
exotic (adj.) Look up exotic at Dictionary.com
1590s, "belonging to another country," from Middle French exotique (16c.) and directly from Latin exoticus, from Greek exotikos "foreign," literally "from the outside," from exo "outside" (see exo-). Sense of "unusual, strange" first recorded in English 1620s, from notion of "alien, outlandish." In reference to strip-teasers and dancing girls, it is first attested by 1942, American English.
Exotic dancer in the nightclub trade means a girl who goes through a few motions while wearing as few clothes as the cops will allow in the city where she is working ... ["Life," May 5, 1947]
As a noun from 1640s.
exoticism (n.) Look up exoticism at Dictionary.com
1827, from exotic + -ism.
expand (v) Look up expand at Dictionary.com
early 15c., "spread out, spread flat," from Anglo-French espaundre, Middle French espandre and directly from Latin expandere "to spread out, unfold, expand," from ex- "out" (see ex-) + pandere "to spread, stretch" (see pace (n.)). Sense of "grow larger" first recorded 1640s. Related: Expanded; expanding.
expanse (n.) Look up expanse at Dictionary.com
1660s, from Latin expansum, noun use of neuter of expansus, past participle of expandere (see expand).
expansion (n.) Look up expansion at Dictionary.com
1610s, "anything spread out;" 1640s, "act of expanding," from French expansion, from Late Latin expansionem (nominative expansio) "a spreading out," noun of action from past participle stem of Latin expandere (see expand).
expansionist (n.) Look up expansionist at Dictionary.com
"one who advocates the expansion of the territory of his nation," 1864, from expansion + -ist. Related: Expansionism.
expansive (adj.) Look up expansive at Dictionary.com
1650s, "tending to expand," from Latin expans-, past participle stem of expandere (see expand) + -ive. Related: Expansively; expansiveness.
expat (n.) Look up expat at Dictionary.com
1962, shortening of expatriate (n.).
expatiate (v.) Look up expatiate at Dictionary.com
1530s, "walk about, roam freely," from Latin expatiatus/exspatiatus, past participle of expatiari/exspatiari "wander, digress," from ex- "out" (see ex-) + spatiari "to walk, spread out," from spatium (see space). Meaning "talk or write at length" is 1610s. Related: Expatiated; expatiating.
expatriate (v.) Look up expatriate at Dictionary.com
1768, from French expatrier "banish" (14c.), from ex- "out of" (see ex-) + patrie "native land," from Latin patria "one's native country," from pater (genitive patris) "father" (see father (n.); also compare patriot). Related: Expatriated; expatriating. The noun is from 1818, "one who has been banished;" main modern sense of "one who chooses to live abroad" is 1902.
expatriation (n.) Look up expatriation at Dictionary.com
1816, from French expatriation, noun of action from expatrier (see expatriate).
expect (v.) Look up expect at Dictionary.com
1550s, "wait, defer action," from Latin expectare/exspectare "await, look out for, desire, hope," from ex- "thoroughly" (see ex-) + spectare "to look," frequentative of specere "to look at" (see scope (n.1)).

Figurative sense of "anticipate, look forward to" developed in Latin, attested in English from c.1600. Used since 1817 as a euphemism for "be pregnant." Related: Expected; expecting.
expectancy (n.) Look up expectancy at Dictionary.com
1590s, from Latin expectantia (see expectant) + -ancy.
expectant (adj.) Look up expectant at Dictionary.com
late 14c., from Old French expectant or directly from Latin expectantem/exspectantem (nominative expectans/exspectans), present participle of expectare/exspectare (see expect). Related: Expectantly. As a noun, from 1620s.
expectation (n.) Look up expectation at Dictionary.com
1530s, from Middle French expectation (14c.) or directly from Latin expectationem/exspectationem (nominative expectatio/exspectatio) "anticipation, an awaiting," noun of action from past participle stem of expectare/exspectare (see expect). Related: Expectations.
expectorant (n.) Look up expectorant at Dictionary.com
1782, from Latin expectorantem (nominative expectorans), present participle of expectorare (see expectorate). From 1811 as an adjective.
expectorate (v.) Look up expectorate at Dictionary.com
c.1600, "to clear out the chest or lungs," from Latin expectoratus, past participle of expectorare "scorn, expel from the mind," literally "make a clean breast," from ex- "out" (see ex-) + pectus (genitive pectoris) "breast" (see pectoral (adj.)). Use as a euphemism for "spit" is first recorded 1827. Original sense in expectorant. Related: Expectorated; expectorating.
expectoration (n.) Look up expectoration at Dictionary.com
1670s, noun of action from expectorate.
expediate (v.) Look up expediate at Dictionary.com
a 17c. error for expedite that has gotten into the dictionaries.
expedience (n.) Look up expedience at Dictionary.com
mid-15c., "advantage, benefit," from Old French expedience, from Late Latin expedientia, from expedientem (see expedient). Related: Expediency (1610s).
expedient (adj.) Look up expedient at Dictionary.com
late 14c., "advantageous, fit, proper," from Old French expedient (14c.) or directly from Latin expedientem (nominative expediens) "beneficial," present participle of expedire "make fit or ready, prepare" (see expedite). The noun meaning "a device adopted in an exigency, a resource" is from 1650s. Related: Expediential; expedientially (both 19c.)
expediently (adv.) Look up expediently at Dictionary.com
late 14c., from expedient (adj.) + -ly (2).
expedite (v.) Look up expedite at Dictionary.com
late 15c. (implied in past participle expedit), from Latin expeditus, past participle of expedire "extricate, disengage, liberate; procure, make ready, make fit, prepare," literally "free the feet from fetters," hence "liberate from difficulties," from ex- "out" (see ex-) + *pedis "fetter, chain for the feet," related to pes (genitive pedis) "foot" (see foot (n.)). Compare Greek pede "fetter." Related: Expedited; expediting.
expedition (n.) Look up expedition at Dictionary.com
early 15c., "military campaign; the act of rapidly setting forth," from Middle French expédition (13c.) and directly from Latin expeditionem (nominative expeditio), noun of action from past participle stem of expedire (see expedite). Meaning "journey for some purpose" is from 1590s. Sense by 1690s also included the body of persons on such a journey. Related: Expeditionary.
expeditious (adj.) Look up expeditious at Dictionary.com
late 15c., expedycius "useful, fitting," from Latin expeditus "disengaged, ready, prompt," past participle of expidere (see expedite). Meaning "speedy" is from 1590s. Related: Expeditiously; expeditiousness.
expel (v.) Look up expel at Dictionary.com
late 14c., from Latin expellere "drive out," from ex- "out" (see ex-) + pellere "to drive" (see pulse (n.1)). Meaning "to eject from a school" is first recorded 1640s. Related: Expelled; expelling.
expellee (n.) Look up expellee at Dictionary.com
1888, from expel + -ee.