英语词源字典 - 在线词源网站

eighties (n.)[eighties 词源字典]: 1827 as the years of someone's life between ages 80 and 89; from 1833 as the ninth decade of years in a given century; from 1854 with reference to Fahrenheit temperature. See eighty.[eighties etymology, eighties origin, 英语词源]
eighty (n.): eigteti (late 13c.), from eight + -ty (1). Replacing Old English hundeahtatig, with hund- "ten." Related: Eightieth.
eighty-six (v.): slang for "eliminate," 1936, originated at lunch counters, a cook's word for "none" when asked for something not available, probably rhyming slang for nix.
Eileen: fem. proper name, from Celtic (compare Irish Eibhlin) but influenced in form by Helen.
Einstein (n.): as a type-name for a person of genius, 1920, in reference to German-born theoretical physicist Albert Einstein (1879-1955), who was world-famous from 1919 through media accounts of his work in theoretical physics. According to "German-American Names" (George F. Jones, 3rd ed., 2006) it means literally "place encompassed by a stone wall."
einsteinium (n.): radioactive element, discovered in the debris of a 1952 U.S. nuclear test in the Pacific, named 1955 for physicist Albert Einstein (1879-1955).
Eire: see Irish.
eirenic (adj.): "tending toward or productive of peace," 1866, from Greek eirenikos, from eirene "peace, time of peace." Earlier as irenic (1864), irenical (1650s).
eisegesis (n.): the reading of one's own ideas into scripture, 1859, from Greek eis "in, into" + ending from exegesis. Related: Eisegetical.
Eisenhower: surname, from German Eisenhauer, literally "iron-cutter, iron-hewer," "perhaps based on Fr. Taillefer" [George F. Jones, "German-American Names," 3rd ed., 2006].
Eisteddfod (n.): "annual assembly of Welsh bards," 1822, from Welsh eisteddfod "congress of bards or literati," literally "a session, a sitting," from eistedd "to sit" (from sedd "seat," cognate with Latin sedere; see sedentary) + bod "to be" (cognate with Old English beon; see be). The Welsh plural is eisteddfodau.
either: Old English ægðer, contraction of æghwæðer (pron., adv., conj.) "each of two, both," from a "always" (see aye (adv.)) + ge- collective prefix + hwæðer "which of two, whether" (see whether). Cognate with Dutch ieder, Old High German eogiwedar, German jeder "either, each, every").

Modern sense of "one or the other of two" is late 13c. Adverbially, for emphasis, "in any case, at all," especially when expressing negation, by 1828. Use of either-or to suggest an unavoidable choice between alternatives (1931) in some cases reflects Danish enten-eller, title of an 1843 book by Kierkegaard.
ejaculate (v.): 1570s, "emit semen," from Latin eiaculatus, past participle of eiaculari "to throw out, shoot out," from ex- "out" (see ex-) + iaculari "to throw, hurl, cast, dart," from iaculum "javelin, dart," from iacere "to throw" (see jet (v.)). Sense of "exclaim suddenly" is from 1660s. Related: Ejaculated; ejaculating; ejaculatory.
ejaculation (n.): c. 1600, of fluids; 1620s, of utterances, from French éjaculation, noun of action from éjaculer, from Latin ejaculari (see ejaculate).
eject (v.): mid-15c., from Latin eiectus "thrown out," past participle of eicere "throw out, cast out, thrust out; drive into exile, expel, drive away," from ex- "out" (see ex-) + -icere, comb. form of iacere "to throw" (see jet (v.)). Related: Ejected; ejecting. Ejecta "matter thrown out by a volcano" is from 1851.
ejection (n.): 1560s, from Middle French ejection and directly from Latin eiectionem (nominative eiectio) "a casting out, banishment, exile," noun of action from past participle stem of eicere (see eject). The jet pilot's ejection seat (also ejector seat) is from 1945.
eke (v.): c. 1200, eken "to increase, lengthen," north England and East Midlands variant of echen from Old English ecan, eacan, eacian "to increase," probably from eaca "an increase," from Proto-Germanic *aukan (cognates: Old Norse auka, Danish öge, Old Frisian aka, Old Saxon okian, Old High German ouhhon, Gothic aukan), from PIE *aug- (1) "to increase" (see augment). Now mainly in phrase to eke out (1590s), wherein it means "to make a supply of something go further or last longer." Related: Eked; eking.
eke (adv.): "also" (obsolete), from Old English eac, cognate with Old Saxon, Old Dutch ok, Old Norse and Gothic auk, Old Frisian ak, Old High German ouh, German auch "also;" probably related to eke (v.).
el (n.): American English abbreviation of elevated railroad, first recorded 1906 in O. Henry.
el: Spanish article, from Latin ille "that."