LucinayoudaoicibaDictYouDict[Lucina 词源字典]
Roman goddess of childbirth, from Latin Lucina, literally "she that brings to the light," fem. of lucinus, from lux (see light (n.)).[Lucina etymology, Lucina origin, 英语词源]
LuciteyoudaoicibaDictYouDict
1937, proprietary name (E.I. DuPont de Nemours and Co., Wilmington, Delaware, U.S.) for a solid, transparent plastic, from Latin luc(i)-, from stem of lucere "to shine" (see light (n.)).
LuciusyoudaoicibaDictYouDict
masc. proper name; see Lucian.
luck (n.)youdaoicibaDictYouDict
late 15c. from early Middle Dutch luc, shortening of gheluc "happiness, good fortune," of unknown origin. It has cognates in Dutch geluk, Middle High German g(e)lücke, German Glück "fortune, good luck." Perhaps first borrowed in English as a gambling term. To be down on (one's) luck is from 1832; to be in luck is from 1900; to push (one's) luck is from 1911. Good luck as a salutation to one setting off to do something is from 1805. Expression better luck next time attested from 1802.
A gentleman was lately walking through St Giles's, where a levelling citizen attempting to pick his pocket of a handkerchief, which the gentleman caught in time, and secured, observing to the fellow, that he had missed his aim, the latter, with perfect sang-froid, answered, "better luck next time master."  [“Monthly Mirror,” London, 1802]
luck (v.)youdaoicibaDictYouDict
by 1945, from luck (n.). To luck out "succeed through luck" is American English colloquial, attested by 1946; to luck into (something good) is from 1944. However, lukken was a verb in Middle English (mid-15c.) meaning "to happen, chance;" also, "happen fortunately."
luckily (adv.)youdaoicibaDictYouDict
1520s, from lucky + -ly (2).
luckless (adj.)youdaoicibaDictYouDict
1560s, from luck (n.) + -less. Related: Lucklessly; lucklessness.
lucky (adj.)youdaoicibaDictYouDict
mid-15c., of persons; 1540s, of actions or objects, "likely to bring luck;" from luck + -y (2). Meaning "occurring by chance" is 1590s. Related: Luckier; luckiest; luckiness. Lucky break is attested from 1884 in billiards; 1872 as "failure or break-down which turns out to be fortunate." Lucky Strike as the name of a brand of cigarettes (originally chewing tobacco) popular mid-20c. is said to date from 1871; popular from 1935 when the brand’s maker picked up sponsorship of “Your Hit Parade” on radio.
lucrative (adj.)youdaoicibaDictYouDict
early 15c., from Old French lucratif "profitable" and directly from Latin lucrativus "gainful, profitable," from lucratus, past participle of lucrari "to gain," from lucrum "gain, profit" (see lucre). Related: Lucratively; lucrativeness.
lucre (n.)youdaoicibaDictYouDict
late 14c., from Latin lucrum "gain, advantage, profit; wealth, riches," from PIE root *lau- "gain, profit" (cognates: Greek apo-lanein "to enjoy," Gothic launs, German lohn "wages, reward," and possibly Sanskrit lotam, lotram "booty"). Filthy lucre (Tit. i:11) is Tyndale's rendering of Greek aischron kerdos.
LucretiayoudaoicibaDictYouDict
fem. proper name, from Latin Lucretia (source also of French Lucrèce), fem. of Lucretius, Roman masc. proper name, originally the name of a Roman gens.
lucubrate (v.)youdaoicibaDictYouDict
"to work at night," 1620s, from Latin lucubratus, past participle of lucubrare "to work by lamplight" (see lucubration). Literally, "to work by artificial light," hence "to work laboriously."
lucubration (n.)youdaoicibaDictYouDict
1590s, "literary work showing signs of too-careful elaboration," from Latin lucubrationem (nominative lucubratio) "nocturnal study, night work," noun of action from past participle stem of lucubrare, literally "to work by artificial light," from stem of lucere "to shine" (see light (n.)).
LucyyoudaoicibaDictYouDict
fem. proper name, from French Lucie, from Latin Lucia, fem. of Lucius (see Lucian).
Luddite (n.)youdaoicibaDictYouDict
also luddite, 1811, from name taken by an organized band of weavers who destroyed machinery in Midlands and northern England 1811-16 for fear it would deprive them of work. Supposedly from Ned Ludd, a Leicestershire worker who in 1779 had done the same before through insanity (but that story first was told in 1847). Applied to modern rejecters of automation and technology from at least 1961. As an adjective from 1812.
lude (n.)youdaoicibaDictYouDict
slang shortening of quaalude, by 1973.
ludic (adj.)youdaoicibaDictYouDict
"spontaneously playful," 1940, from French ludique, from Latin ludere "to play" (see ludicrous).
ludicrous (adj.)youdaoicibaDictYouDict
1610s, "pertaining to play or sport," from Latin ludicrus, from ludicrum "a sport, game, toy, source of amusement, joke," from ludere "to play," which, with Latin ludus "a game, play," perhaps is from Etruscan, or perhaps from PIE root *leid- "to play." Sense of "ridiculous" is attested from 1782. Related: Ludicrously; ludicrousness.
LudwigyoudaoicibaDictYouDict
masc. proper name, from Old High German hlud(o)wig, literally "famous in war," from Proto-Germanic *hluda- "heard of, famous" (see loud) + *wiga "war." Compare Louis.
luff (n.)youdaoicibaDictYouDict
c. 1200, in sailing, from Old French lof "spar," or some other nautical device, "point of sail," also "windward side," probably from Germanic (compare Middle Dutch lof "windward side of a ship" (Dutch loef), which might also be the direct source of the English word), from Proto-Germanic *lofo (cognates: Old Norse lofi, Gothic lofa "palm of the hand," Danish lab, Swedish labb "paw"), from PIE *lep- "to be flat" (see glove). As a verb from late 14c., from the noun.