英语词源字典 - 在线词源网站

effects (n.)[effects 词源字典]: "goods, property," 1704, plural of effect (n.); after a use of French effets.[effects etymology, effects origin, 英语词源]
effectual (adj.): "producing an effect; having power to produce an effect," late 14c., Old French effectuel, from Late Latin effectualis, from Latin effectus "accomplishment, performance" (see effect (n.)). Used properly of actions (not agents) and with a sense "having the effect aimed at" (effective is used of the thing done or the agent and means "having great effect"). Related: Effectually; effectualness.
effectuate (v.): "bring to pass, accomplish, achieve," 1570s, from French effectuer, from Latin effectus "an effecting, accomplishment, performance" (see effect (n.)). According to OED, formed "on the model of" actuate. Related: Effectuated; effectuating.
effeminacy (n.): c. 1600; see effeminate + -acy.
effeminate (adj.): late 14c., "womanish; voluptuous; tender," from Latin effeminatus "womanish, effeminate," past participle of effeminare "make a woman of," from ex- "out" (see ex-) + femina "woman" (see feminine). Rarely used but in reproach. The noun meaning "effeminate person" is from 1590s. Related: Effeminately; effemination.
effendi (n.): Turkish title of respect, equivalent to English sir, 1610s, from Turkish efendi, title of respect applied to professionals and officials, corruption of Greek authentes "lord, master" (in Modern Greek aphentes; see authentic).
efferent (adj.): "conveying outward or away," 1827, from Latin efferentem (nominative efferens), present participle of effere "to carry out or away, bring forth," from ef- (see ex-) + ferre "to bear, carry" (see infer). As a noun from 1876.
effervesce (v.): 1702, from Latin effervescere "to boil up, boil over" (see effervescence). Related: Effervesced; effervescing.
effervescence (n.): 1650s, "the action of boiling up," from French effervescence (1640s), from Latin effervescentem, present participle of effervescere "to boil up, boil over," from ex- "out" (see ex-) + fervescere "begin to boil," from fervere "be hot, boil" (see brew). Figurative sense of "liveliness" is from 1748. Related: Effervescency.
effervescent (adj.): 1680s, from Latin effervescentem (nominative effervescens), present participle of effervescere "to boil up, boil over" (see effervescence). Figurative meaning "exuberant" is from 1833.
effete (adj.): 1620s, "functionless as a result of age or exhaustion," from Latin effetus (usually in fem. effeta) "exhausted, unproductive, worn out (with bearing offspring), past bearing," literally "that has given birth," from a lost verb, *efferi, from ex- "out" (see ex-) + fetus "childbearing, offspring" (see fetus). Figurative use is earliest in English; literal use is rare. Sense of "intellectually or morally exhausted" (1790) led to that of "decadent, effeminate" (by 1850s).
efficacious (adj.): "sure to have the desired effect" (often of medicines), 1520s, from Latin efficaci-, stem of efficax "effectual, powerful" (see efficacy) + -ous. Related: Efficaciously; efficaciousness.
efficacy (n.): 1520s, from Latin efficacia "efficacy, efficiency," from efficax (genitive efficacis) "powerful, effectual, efficient," from stem of efficere "work out, accomplish" (see effect (n.)). Earlier in same sense was efficace (c. 1200), from Old French eficace (14c.), from Latin efficacia; also efficacite (early 15c.), from Latin efficacitatem.
efficiency (n.): 1590s, "power to accomplish something," from Latin efficientia "efficient power; efficiency; influence" (from efficientem; see efficient) + -cy. In mechanics, "ratio of useful work done to energy expended," from 1858. Attested from 1952 as short for efficiency apartment (itself from 1920).
efficient (adj.): late 14c., "making, producing immediate effect, active, effective," from Old French efficient and directly from Latin efficientem (nominative efficiens) "effective, efficient, producing, active," present participle of efficere "work out, accomplish" (see effect). Meaning "productive, skilled" is from 1787. Related: Efficiently.
effigy (n.): "image of a person," 1530s, from Middle French effigie (13c.), from Latin effigies "copy or imitation of something, likeness, image, statue," from or related to effingere "to mold, fashion, portray," from ex- "out" (see ex-) + fingere "to form, shape" (see fiction). The Latin word was regarded as plural and the -s was lopped off by 18c. Especially figures made of stuffed clothing; the burning or hanging of them is attested by 1670s. Formerly done by judicial authorities as symbolic punishment of criminals who had escaped their jurisdiction; later a popular expression against persons deemed obnoxious. Related: Effigial.
effleurage (n.): "gentle rubbing with the palm of the hand," 1886, from French effleurage, from effleurer "to graze, touch lightly, touch upon, strip the leaves off," from ef- "out" (see ex-) + fleur as in the phrase à fleur de "on a level with," from German Flur "a plain, field, meadow" (see floor (n.)).
effloresce (v.): "to come into flower," 1775, from Latin efflorescere, inceptive form (in Late Latin simplified to efflorere) "to blossom, spring up, flourish, abound," from ex "out" (see ex-) + florescere "to blossom," from flos (see flora). Sense in chemistry is from 1788.
efflorescence (n.): 1620s, "a bursting into flower, act of blossoming out," from French efflorescence, from Latin efflorescentem (nominative efflorescens), present participle of efflorescere "to bloom, flourish, blossom" (see effloresce). Sense in chemistry is from 1660s.
efflorescent (adj.): 1741, from Latin efflorescentem (nominative efflorescens), present participle of efflorescere "to bloom, flourish" (see effloresce).