eupeptic (adj.) Look up eupeptic at Dictionary.com
1831, from Greek eupeptos "having good digestion," from eu- "well, good" (see eu-) + peptos "digested" (see peptic).
euphemism (n.) Look up euphemism at Dictionary.com
1650s, from Greek euphemismos "use of a favorable word in place of an inauspicious one," from euphemizein "speak with fair words, use words of good omen," from eu- "good, well" (see eu-) + pheme "speaking," from phanai "speak" (see fame (n.)).

In ancient Greece, the superstitious avoidance of words of ill-omen during religious ceremonies, or substitutions such as Eumenides "the Gracious Ones" for the Furies (see also Euxine). In English, a rhetorical term at first; broader sense of "choosing a less distasteful word or phrase than the one meant" is first attested 1793. Related: Euphemistic; euphemistically.
euphemistic (adj.) Look up euphemistic at Dictionary.com
1830; see euphemism + -istic. Related: Euphemistically (1833).
euphony (n.) Look up euphony at Dictionary.com
mid-15c., from Middle French euphonie, from Late Latin euphonia, from Greek euphonia "sweetness of voice," related to euphonos "well-sounding," from eu- "good" (see eu-) + phone "sound, voice," related to phanai "speak" (see fame (n.)). Related: Euphonic (1782); euphonical (1660s); euphonious (1774). Hence, also, euphonium (1864), the musical instrument.
euphoria (n.) Look up euphoria at Dictionary.com
1727, a physician's term for "condition of feeling healthy and comfortable (especially when sick)," medical Latin, from Greek euphoria "power of enduring easily," from euphoros, literally "bearing well," from eu "well" (see eu-) + pherein "to carry" (see infer). Non-technical use, now the main one, dates to 1882 and perhaps is a reintroduction. Earlier the word meant "effective operation of a medicine on a patient" (1680s).
euphoric (adj.) Look up euphoric at Dictionary.com
"characterized by euphoria," 1885, originally with reference to cocaine, from euphoria + -ic. The noun meaning "a drug which causes euphoria" also is from 1885. Euphoriant is from 1946 as a noun, 1947 as an adjective.
Euphrates Look up Euphrates at Dictionary.com
Mesopotamian river, arising in Armenia and flowing to the Persian Gulf, Old English Eufrate, from Greek Euphrates, from Old Persian Ufratu, perhaps from Avestan huperethuua "good to cross over," from hu- "good" + peretu- "ford." But Kent says "probably a popular etymologizing in O.P. of a local non-Iranian name" ["Old Persian," p.176]. In Akkadian, purattu. Related: Euphratean.
Euphrosyne Look up Euphrosyne at Dictionary.com
name of one of the three Graces in Greek mythology, via Latin, from Greek Euphrosyne, literally "mirth, merriment," from euphron "cheerful, merry, of a good mind," from eu "well, good" (see eu-) + phren (genitive phrenos) "mind," of unknown origin.
Euphues Look up Euphues at Dictionary.com
chief character in two popular books by English writer John Lyly (1553-1606), from Greek euphyes "well-endowed by nature." The affected and ornate style of writing and speech popularized by the works was fashionable late 16c.-early 17c.; hence euphuism (1590s); euphuistic; euphuist.
Eurafrican (adj.) Look up Eurafrican at Dictionary.com
1884 of the region of the Atlantic beside both continents; ; see Euro- + African Transferred or re-coined to describe the "colored" population of South Africa (1920s) and political situations involving both continents (1909).
Eurasia (n.) Look up Eurasia at Dictionary.com
1881, from Euro- + Asia. First record of it in any language seems to be in H. Reusche's "Handbuch der Geographie" (1858), but see Eurasian. Related: Eurasiatic (1863).
Eurasian (adj.) Look up Eurasian at Dictionary.com
1844, from Euro- + Asian. Originally of children of British-East Indian marriages; meaning "of Europe and Asia considered as one continent" is from 1868. As a noun from 1845.
eureka Look up eureka at Dictionary.com
c.1600, from Greek heureka "I have found (it)," first person singular perfect active indicative of heuriskein "to find" (see heuristic). Supposedly shouted by Archimedes (c.287-212 B.C.E.) when he solved a problem that had been set to him: determining whether goldsmiths had adulterated the metal in the crown of Hiero II, king of Syracuse.
Euripus Look up Euripus at Dictionary.com
strait between Euboea and the Greek mainland, notorious for its violent and unpredictable currents, from eu- "good, well" (see eu-) + rhipe "rush." Apparently euphemistic.
Euro (n.) Look up Euro at Dictionary.com
name for the basic monetary unit of a pan-European currency, from 1996.
Euro- Look up Euro- at Dictionary.com
before vowels Eur-, word forming element meaning "Europe, European," from comb. form of Europe.
Eurocentric (adj.) Look up Eurocentric at Dictionary.com
1963, from Euro- + -centric.
Europe Look up Europe at Dictionary.com
from Latin Europa "Europe," from Greek Europe, of uncertain origin; as a geographic name first recorded in the Homeric hymn to Apollo (522 B.C.E. or earlier):
"Telphusa, here I am minded to make a glorious temple, an oracle for men, and hither they will always bring perfect hecatombs, both those who live in rich Peloponnesus and those of Europe and all the wave-washed isles, coming to seek oracles."
Often explained as "broad face," from eurys "wide" (see eury-) + ops "face," literally "eye" (see eye (n.)). But also traditionally linked with Europa, Phoenician princess in Greek mythology. Klein (citing Heinrich Lewy) suggests a possible Semitic origin in Akkad. erebu "to go down, set" (in reference to the sun) which would parallel orient. Another suggestion along those lines is Phoenician 'ereb "evening," hence "west."
European Look up European at Dictionary.com
c.1600 (adj.); 1630s (n.), from French Européen, from Latin Europaeus, from Greek Europaios "European," from Europe (see Europe).
europium (n.) Look up europium at Dictionary.com
rare earth element, 1901, named by its discoverer, French chemist Eugène Demarçay (1852-1903) in 1896, from Europe + -ium.
eury- Look up eury- at Dictionary.com
word-forming element meaning "wide," from comb. form of Greek eurys "broad, wide," from PIE root *were- (1) "wide, broad" (cognates: Sanskrit uruh "broad, wide").
Eurydice Look up Eurydice at Dictionary.com
wife of Orpheus in Greek mythology, from Latinized form of Greek Eurydike, literally "wide justice," from eurys "wide" (see eury-) + dike "right, custom, usage, law; justice" (cognate with Latin dicere "to show, tell;" see diction).
eurypterid (n.) Look up eurypterid at Dictionary.com
fossil swimming crustacean of the Silurian and Devonian, 1874, from Greek eurys "broad, wide" (see eury-) + pteron "feather, wing" (see pterodactyl); so called from their swimming appendages.
eurythmic (adj.) Look up eurythmic at Dictionary.com
also eurhythmic, "harmonious," 1831, from Greek eurythmia "rhythmical order," from eurythmos "rhythmical, well-proportioned," from eu "well, good" (see eu-) + rhythmos "rhythm" (see rhythm). Related: Eurythmics (1912 in reference to a system of rhythmical bodily movements or dance exercises); eurythmy.
Eustace Look up Eustace at Dictionary.com
masc. proper name, from Old French Eustace (Modern French Eustache), from Latin Eustachius, probably from Greek eustakhos "fruitful," from eu "well, good" (see eu-) + stakhys "ear (of grain);" see spike (n.1).
Eustachian tube (n.) Look up Eustachian tube at Dictionary.com
so called for Italian physician Bartolomeo Eustachio (d.1574), who discovered the passages from the ears to the throat. His name is from Latin Eustachius (see Eustace).
Euterpe Look up Euterpe at Dictionary.com
muse of music, from Greek Euterpe, literally "well-pleasing," from eu "well" (see eu-) + terpein "to delight, please" (see Terpsichore). "A divinity of joy and pleasure, inventress of the double flute, favoring rather the wild and simple melodies of primitive peoples than the more finished art of music, and associated more with Bacchus than with Apollo" [Century Dictionary]. Related: Euterpean.
euthanasia (n.) Look up euthanasia at Dictionary.com
1640s, "a gentle and easy death," from Greek euthanasia "an easy or happy death," from eu- "good" (see eu-) + thanatos "death" (see thanatology) + abstract noun ending -ia. Slightly earlier in anglicized form euthanasy (1630s). Sense of "legally sanctioned mercy killing" is recorded in English by 1869.
euthanise (v.) Look up euthanise at Dictionary.com
chiefly British English spelling of euthanize; for suffix, see -ize. Related: Euthanised; euthanising.
euthanize (v.) Look up euthanize at Dictionary.com
by 1915, in place of earlier and etymologically correct euthanatize (1873); see euthanasia + -ize. Related: Euthanized; euthanizing.
Euxine Look up Euxine at Dictionary.com
archaic name for the Black Sea, from Latin Pontus Euxinus, from Greek Pontos Euxenios, literally "the hospitable sea," a euphemism for Pontos Axeinos, "the inhospitable sea." From eu- "good, well" (see eu-) + xenos "host; guest; stranger" (see xeno-).

According to Room, The Old Persian name for the sea was akhshaena, literally "dark," probably in reference to the sudden, dangerous storms that make the sea perilous to sailors and darken its face (or perhaps in reference to the color of the water, from the sea being deep and relatively lifeless), and the Greeks took this untranslated as Pontos Axeinos, which was interpeted as the similar-sounding Greek word axenos "inhospitable." Thus the modern English name could reflect the Old Persian one.
evacuate (v.) Look up evacuate at Dictionary.com
1520s (trans.), from Latin evacuatus, past participle of evacuare "to empty, make void, nullify," used by Pliny in reference to the bowels, used figuratively in Late Latin for "clear out;" from assimilated form of ex- "out" (see ex-) + vacuus "empty" (see vacuum).

Earliest sense in English is medical. Military use is by 1710. Meaning "remove inhabitants to safer ground" is from 1934. Intransitive sense is from 1630s; of civilian persons by 1900. Replaced Middle English evacuen "draw off or expel (humors) from the body" (c.1400). Related: Evacuated; evacuating.
evacuation (n.) Look up evacuation at Dictionary.com
c.1400, "discharge from the body" (originally mostly of blood), from Old French évacuation and directly from Late Latin evacuationem (nominative evacuatio), noun of action from past participle stem of evacuare "to empty" (see evacuate). Military sense is by 1710. Of persons, by 1854.
evacuee (n.) Look up evacuee at Dictionary.com
1934, from French évacué, from évacuer, from Latin evacuare "to empty" (see evacuate) + -ee. Evacuant (n.) was used from 1730s in medicine.
evade (v.) Look up evade at Dictionary.com
1510s, "escape," from Middle French evader, from Latin evadere "to escape, get away," from assimilated form of ex- "away" (see ex-) + vadere "to go, walk" (see vamoose). Special sense of "escape by trickery" is from 1530s. Related: Evaded; evading.
evagation (n.) Look up evagation at Dictionary.com
"action of wandering," 1650s, from French évagation, from Latin evagationem (nominative evagatio), noun of action from past participle stem of evagari, from assimilated form of ex- (see ex-) + vagari, from vagus "roving, wandering" (see vague).
evaginate (v.) Look up evaginate at Dictionary.com
1650s, "withdraw (something) from a sheath;" 1660s, "to turn (a tube) inside out," from Latin evaginatus, past participle of evaginare "to unsheathe," from assimilated form of ex- (see ex-) + vagina (see vagina). Related: Evaginated; evaginating.
evaluate (v.) Look up evaluate at Dictionary.com
1831, back-formation from evaluation, or else from French évaluer, back-formation from from évaluation. Originally in mathematics. Related: Evaluated; evaluating.
evaluation (n.) Look up evaluation at Dictionary.com
1755, "action of appraising or valuing," from French évaluation, noun of action from évaluer "to find the value of," from é- "out" (see ex-) + valuer (see value (n.)). Meaning "job performance review" attested by 1947.
evaluative (adj.) Look up evaluative at Dictionary.com
1903, from evaluate + -ive.
Evan Look up Evan at Dictionary.com
masc. proper name, Welsh form of John, perhaps influenced in form by Welsh ieuanc "young man" (cognate of Latin juvenis), from Celtic *yowanko-, from PIE *yeu- "vital force, youthful vigor" (see young (adj.)).
evanesce (v.) Look up evanesce at Dictionary.com
"vanish by degrees, melt into thin air," 1817, a back-formation from evanescence, or else from Latin evanescere "to pass away, vanish" (see evanescent).
evanescence (n.) Look up evanescence at Dictionary.com
1751, "process of gradually vanishing;" see evanescent + -ence. Meaning "quality of being evanescent" is from 1830. Evanescency is attested from 1660s.
evanescent (adj.) Look up evanescent at Dictionary.com
1717, "on the point of becoming imperceptible," from French évanescent, from Latin evanescentem (nominative evanescens), present participle of evanescere "disappear, vanish, pass away," figuratively "be forgotten, be wasted," from assimilated form of ex- "out" (see ex-) + vanescere "vanish" (see vanish). Sense of "quickly vanishing, having no permanence" is by 1738.
evangel (n.) Look up evangel at Dictionary.com
mid-14c., "the gospel," from Old French evangile, from Church Latin evangelium, from Greek evangelion (see evangelism).
evangelical Look up evangelical at Dictionary.com
1530s "of or pertaining to the gospel" (adj.), also "a Protestant," especially a German one (n.); with -al (1) + evangelic (early 15c.), from Old French evangelique, from Late Latin evangelicus, from evangelista (see evangelist).

From mid-18c. in reference to a tendency or school in Protestantism seeking to promote conversion and emphasizing salvation by faith, the sacrifice of Christ, and a strictly religious life. As "member of the 'evangelical' party in a church" from 1804. Related: Evangelically; Evangelicalism (1812).
Evangeline Look up Evangeline at Dictionary.com
fem. proper name, from French Évangeline, ultimately from Greek evangelion "good news" (see evangelism).
evangelism (n.) Look up evangelism at Dictionary.com
1620s, "the preaching of the gospel," from evangel + -ism, or else from Medieval Latin evangelismus "a spreading of the Gospel," from Late Latin evangelium "good news, gospel," from Greek euangelion (see evangelist). In reference to evangelical Protestantism, from 1812.
evangelist (n.) Look up evangelist at Dictionary.com
late 12c., "Matthew, Mark, Luke or John," from Old French evangelist and directly from Late Latin evangelista, from Greek euangelistes "preacher of the gospel," literally "bringer of good news," from euangelizesthai "bring good news," from eu- "good" (see eu-) + angellein "announce," from angelos "messenger" (see angel).

In early Greek Christian texts, the word was used of the four traditional authors of the narrative gospels. Meaning "itinerant preacher" was another early Church usage, revived in Middle English (late 14c.). Classical Greek euangelion meant "the reward of good tidings;" sense transferred in Christian use to the glad tidings themselves. In Late Latin, Greek eu- regularly was consonantized to ev- before vowels.
evangelistic (adj.) Look up evangelistic at Dictionary.com
1838, from evangelist + -ic.