英语词源字典 - 在线词源网站

lowland (n.)[lowland 词源字典]: c. 1500, originally with reference to Scotland, from low (adj.) + land (n.). Related: Lowlander.[lowland etymology, lowland origin, 英语词源]
lowliness (n.): early 15c., from lowly + -ness.
lowly: c. 1300 (adv.); late 14c. (adj.) "humble," from low (adj.) + -ly.
lowness (n.): early 13c., from low (adj.) + -ness.
lox (n.): 1934, American English, from Yiddish laks, from Middle High German lahs "salmon," from Proto-Germanic *lakhs-, from the common IE root for the fish, *laks- (cognates: Lithuanian laszisza, Russian losos, Polish łosoś "salmon").
loxo-: word-forming element meaning "oblique," before vowels lox-, from Greek loxos "slanting, crosswise, oblique." E.g. loxodromics "art of oblique sailing."
loyal (adj.): 1530s, in reference to subjects of sovereigns or governments, from Middle French loyal, from Old French loial, leal "of good quality; faithful; honorable; law-abiding; legitimate, born in wedlock," from Latin legalem, from lex "law." In most cases it has displaced Middle English leal, which is from the same French source. Sense development in English is feudal, via notion of "faithful in carrying out legal obligations." In a general sense (of dogs, lovers, etc.), from c. 1600. As a noun meaning "those who are loyal" from 1530s (originally often in plural).
loyalism (n.): 1812, from loyal + -ism.
loyalist (n.): 1680s, from loyal + -ist. Meaning different persons in different times and places.
loyally (adv.): 1570s, from loyal + -ly (2).
loyalty (n.): c. 1400, from Old French loialté, leauté "loyalty, fidelity; legitimacy; honesty; good quality" (Modern French loyauté), from loial (see loyal). Earlier leaute (mid-13c.), from the older French form. Loyalty oath first attested 1852.
lozenge (n.): figure having four equal sides and two acute and two obtuse angles, early 14c., from Old French losenge "windowpane, small square cake," etc., used for many flat quadrilateral things (Modern French losange). It has cognates in Spanish losanje, Catalan llosange, Italian lozanga. Probably from a pre-Roman Celtic language, perhaps Iberian *lausa or Gaulish *lausa "flat stone" (compare Provençal lausa, Spanish losa, Catalan llosa, Portuguese lousa "slab, tombstone"), from a pre-Celtic language.

Originally in English a term in heraldry; meaning "small cake or tablet (originally diamond-shaped) of medicine and sugar, etc., meant to be held in the mouth and dissolved" is from 1520s.
LP: 1948, abbreviation of long-playing phonograph record.
The most revolutionary development to hit the recording industry since the invention of the automatic changer is the Long Playing record, which can hold an entire 45-minute symphony or musical-comedy score on a single 12-inch disk. ... The disks, released a few weeks ago by Columbia Records and made of Vinylite, have phenomenally narrow grooves (.003 of an inch). They are played at less than half the speed of the standard old-style records. ["Life" magazine, July 26, 1948]
LSD: "lysergic acid diethylamide," 1950, from German "Lysergsäure-diäthylamid" (abbreviated LSD in a Swiss journal from 1947). See lysergic. L.s.d. as the abbreviation of "pounds, shillings, and pence" is recorded from 1853.
Ltd.: abbreviation of limited, attested by 1900.
luau (n.): Hawaiian party or feast, 1853, from Hawaiian lu'au, literally "young taro tops," which were served at outdoor feasts.
lubber (n.): mid-14c., "big, clumsy, stupid fellow who lives in idleness," from lobre, earlier lobi "lazy lout," probably of Scandinavian origin (compare Swedish dialectal lubber "a plump, lazy fellow"). But OED suggests a possible connection with Old French lobeor "swindler, parasite," with sense altered by association with lob (n.) in the "bumpkin" sense. A sailors' word since 16c. (as in landlubber), but earliest attested use is of lazy monks (abbey-lubber). Compare also lubberwort, the name of the mythical herb that produces laziness (1540s); and Lubberland "imaginary land of plenty without work" (1590s). Sometimes also Lubbard (1580s).
lubber (v.): 1520s, from lubber (n.). Related: Lubbered; lubbering.
lubberly (adj.): 1570s, from lubber (n.) + -ly (1).
lube: 1934, colloquial shortening of lubrication. As a verb (short for lubricate) recorded from 1961.