英语词源字典 - 在线词源网站

lav (n.)[lav 词源字典]: colloquial shortening of lavatory, attested from 1913.[lav etymology, lav origin, 英语词源]
lava (n.): 1750, from Italian (Neapolitan or Calabrian dialect) lava "torrent, stream," traditionally from Latin lavare "to wash" (see lave). Originally applied in Italian to flash flood rivulets after downpours, then to streams of molten rock from Vesuvius. Alternative etymology is from Latin labes "a fall," from labi "to fall." Lava lamp is attested from 1965, also lava light (reg. U.S., 1968, as Lava Lite).
lavage (n.): "a washing," 1895, from French lavage, from laver "to wash" (see lave).
lavalier (n.): kind of ornament that hangs around the neck, from French lavallière, a kind of tie, after Louise Françoise de La Baume Le Blanc de La Vallière, Duchesse de La Vallière (1644-1710), mistress of Louis XIV from 1661-1667.
lavaliere: see lavalier.
lavation (n.): "act of washing," 1620s, from Latin lavationem (nominative lavatio), noun of action from past participle stem of lavare (see lave). Related: Lavations.
lavatory (n.): late 14c., "washbasin," from Latin lavatorium "place for washing," noun use of neuter of adjective lavatorius "pertaining to washing," from lavatus, past participle of lavare "to wash" (see lave). Sense of "washroom" is first attested 1650s; as a euphemism for "toilet, W.C.," it is attested by 1864.
lave (v.): c. 1200, from Old English gelafian "wash by pouring, pour (water)," possibly an early English or West Germanic borrowing (compare Dutch laven, German laben) of Latin lavare "to wash," or its Old French descendant, laver. Latin lavare is from PIE *leu(e)- "to wash" (cognates: Latin luere "to wash," Greek louein "to wash, bathe," Old Irish loathar "basin," Breton laouer "trough," Old English leaþor "lather").
lavender (n.): "fragrant plant of the mint family," c. 1300, from Anglo-French lavendre, Old French lavendre, from Medieval Latin lavendula "lavender" (10c.), perhaps from Latin lividus "bluish, livid." Associated with French lavande, Italian lavanda "a washing" (from Latin lavare "to wash;" see lave) because it was used to scent washed fabrics and as a bath perfume. (An identical Middle English word meant "laundress, washerwoman;" also, apparently, "prostitute, whore; camp follower" and is attested as a surname from early 13c.). The adjective meaning "pale purple color" is from 1840.
lavish (adj.): mid-15c., from Middle French lavasse (n.) "torrent of rain, deluge," from Old French lavache, from laver "to wash," from Latin lavare "to wash" (see lave). Related: Lavishly.
lavish (v.): 1540s, from lavish (adj.). Related: Lavished; lavishing.
law (n.): Old English lagu (plural laga, comb. form lah-) "law, ordinance, rule, regulation; district governed by the same laws," from Old Norse *lagu "law," collective plural of lag "layer, measure, stroke," literally "something laid down or fixed," from Proto-Germanic *lagan "put, lay" (see lay (v.)).

Replaced Old English æ and gesetnes, which had the same sense development as law. Compare also statute, from Latin statuere; German Gesetz "law," from Old High German gisatzida; Lithuanian istatymas, from istatyti "set up, establish." In physics, from 1660s. Law and order have been coupled since 1796.
law-abiding (adj.): 1839, from law + abiding.
lawbreaker (n.): also law-breaker, mid-15c., from law + agent noun from break (v.).
lawful (adj.): c. 1300, laghful; see law + -ful. Similar construction in Old Norse logfullr. Related: Lawfully; lawfulness.
lawless (adj.): c. 1200, lawelese (see law + -less) Related: Lawlessly; lawlessness.
lawmaker (n.): also law-maker, late 15c., from law + maker.
lawman (n.): 1530s, "lawyer," from law + man (n.). Meaning "law-enforcement officer" is from 1865. There is an Anglo-Latin lagamannus "magistrate" from early 12c.
lawn (n.1): "turf, stretch of grass," 1540s, laune "glade, open space between woods," from Middle English launde (c. 1300), from Old French lande "heath, moor, barren land; clearing" (12c.), from Gaulish (compare Breton lann "heath"), or from its Germanic cognate, source of English land (n.). The -d perhaps mistaken for an affix and dropped. Sense of "grassy ground kept mowed" first recorded 1733.
lawn (n.2): "thin linen or cotton cloth," early 15c., probably from Laon, city in northern France, a center of linen manufacture. The town name is Old French Lan, from Latin Laudunum, of Celtic origin.