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emesis (n.)[emesis 词源字典]: "action of vomiting," 1875, medical Latin, from Greek emesis "a vomiting," from emein "to vomit" (see emetic).[emesis etymology, emesis origin, 英语词源]
emetic: 1650s (n.), 1660s (adj.), from French émétique (16c.), from Latin emeticus, from Greek emetikos "causing vomiting," from emesis "vomiting," from emein "to vomit," from PIE *weme- "to spit, vomit" (see vomit (v.)).
emic (adj.): 1954, from phonemic.
emigrant (n.): "one who quits a country or region to settle in another," 1754, from Latin emigrantem (nominative emigrans), present participle of emigrare "move away" (see emigration). As an adjective in English from 1794.
emigrate (v.): 1778, a back-formation from emigration, or else from Latin emigratus, past participle of emigrare "move away." In 19c. U.S., "to remove from one state to another state or territory." Related: Emigrated; emigrating.
emigration (n.): 1640s, from Late Latin emigrationem (nominative emigratio) "removal from a place," noun of action from past participle stem of Latin emigrare "move away, depart from a place," from assimilated form of ex- "out" (see ex-) + migrare "to move" (see migration).
emigre (n.): 1792, from French émigré "an emigrant," noun use of past participle of émigrer "emigrate" (18c.), from Latin emigrare "depart from a place" (see emigration). Originally used of royalist refugees from the French Revolution; extended 1920s to refugees from the Russian Revolution, then generally to political exiles.
ÉMIGRÉS Earned their livelihood by giving guitar lessons and mixing salads.
[Flaubert, "Dictionary of Received Ideas"]
Emil: masc. personal name, from German Emil, from French Emilé, from Latin Aemilius, name of a Roman gens, from aemulus "imitating, rivaling" (see emulation).
Emily: also Emilia, fem. proper name, from French Émilie, from Latin Aemilia; see Emil.
eminence (n.): c. 1400, "projection, protuberance;" early 15c., "high or exalted position," from Old French eminence or directly from Latin eminentia "a distinctive feature, conspicuous part," from eminentem (nominative eminens) "standing out, projecting," figuratively, "prominent, distinctive" (see eminent).

As a title of honor (now only of cardinals) it is attested from 1650s. The original Éminence grise (French, literally "gray eminence") was François Leclerc du Trembley (1577-1638), confidential agent of Richelieu.
eminent (adj.): early 15c., from Old French éminent "prominent" (13c.) or directly from Latin eminentem (nominative eminens) "standing out, projecting, prominent, high," figuratively "distinguished, distinctive," present participle of eminere "stand out, project; be prominent, be conspicuous," from assimilated form of ex- "out" (see ex-) + minere, related to mons "hill" (see mount (n.)). Related: Eminently. Legal eminent domain recorded from 1738.
emir (n.): 1590s, from Arabic amir "commander" (see admiral).
emirate (n.): "rule or territory of an emir," 1847; see emir + -ate (1).
emissary (n.): 1620s, from French émissaire (17c.) or directly from Latin emissarius "a scout, a spy," literally "that is sent out," from emissus, past participle of emittere "send forth" (see emit).
emission (n.): early 15c., "something sent forth," from Middle French émission (14c.) and directly from Latin emissionem (nominative emissio) "a sending out, a projecting, hurling, letting go, releasing," noun of action from past participle stem of emittere "send out" (see emit). Meaning "a giving off or emitting" is from 1610s.
emit (v.): 1620s, from Latin emittere "send forth," from assimilated form of ex- "out" (see ex-) + mittere "to send" (see mission). Related: Emitted; emitting.
Emma: fem. proper name, from German Emma, from Erma, contraction of Ermentrude or some similar name. With lower-case -e-, as British telephone and radio enunciation of M to avoid confusion with N, attested by 1891.
Emmanuel: masc. personal name, from Greek form of Hebrew 'Immanu'el, literally "God is with us," from 'immanu "with us," from 'im "with," + first person plural pronominal suffix, + El "God."
Emmaus: Biblical town (Luke xxiv:13), from Aramaic hammat "hot spring."
emmer (n.): species of wheat, 1908, from German Emmer, variant of Amelkorn, from amel "starch," from Latin amylum (see amyl).