英语词源字典 - 在线词源网站

float (v.)[float 词源字典]: late Old English flotian "to rest on the surface of water" (intransitive; class II strong verb; past tense fleat, past participle floten), from Proto-Germanic *flotan "to float" (cognates: Old Norse flota, Middle Dutch vloten, Old High German flozzan, German flössen), from *flot-, from PIE *pleud-, extended form of root *pleu- "to flow" (see pluvial).

Meaning "drift about, hover passively" is from c. 1300. Transitive sense of "to lift up, cause to float" (of water, etc.) is from c. 1600; that of "set (something) afloat" is from 1778 (originally of financial operations). Of motion through air, from 1630s. Meaning "hover dimly before the eyes" is from 1775. Related: Floated; floating. A floating rib (by 1802) is so called because the anterior ends are not connected to the rest.[float etymology, float origin, 英语词源]
impassive (adj.): 1660s, "not feeling pain," from assimilated form of in- "not, opposite of" (see in- (1)) + passive. Meaning "void of emotions" is from 1690s. Related: Impassively; impassiveness (1640s).
lie (v.2): "rest horizontally," early 12c., from Old English licgan (class V strong verb; past tense læg, past participle legen) "be situated, reamin; be at rest, lie down," from Proto-Germanic *legjan (cognates: Old Norse liggja, Old Frisian lidzia, Middle Dutch ligghen, Dutch liggen, Old High German ligen, German liegen, Gothic ligan), from PIE *legh- "to lie, lay" (cognates: Hittite laggari "falls, lies," Greek lekhesthai "to lie down," Latin lectus "bed," Old Church Slavonic lego "to lie down," Lithuanian at-lagai "fallow land," Old Irish laigim "I lie down," Irish luighe "couch, grave"). To lie with "have sexual intercourse" is from c. 1300, and compare Old English licgan mid "cohabit with." To take (something) lying down "passively, submissively" is from 1854.
passive (adj.): late 14c., in grammatical sense (opposed to active), Old French passif "suffering, undergoing hardship" (14c.) and directly from Latin passivus "capable of feeling or suffering," from pass-, past participle stem of pati "to suffer" (see passion). Meaning "not active" is first recorded late 15c.; sense of "enduring suffering without resistance" is from 1620s. Related: Passively. Passive resistance first attested 1819 in Scott's "Ivanhoe," used throughout 19c.; re-coined by Gandhi c. 1906 in South Africa. Passive-aggressive with reference to behavior is attested by 1971.
ride (n.): 1759, "journey on the back of a horse or in a vehicle," from ride (v.); slang meaning "a motor vehicle" is recorded from 1930; sense of "amusement park device" is from 1934. Meaning "act of sexual intercourse" is from 1937. To take (someone) for a ride "tease, mislead, cheat," is first attested 1925, American English, possibly from underworld sense of "take on a car trip with intent to kill" (1927). Phrase go along for the ride in the figurative sense "join in passively" is from 1956. A ride cymbal (1956) is used by jazz drummers for keeping up continuous rhythm, as opposed to a crash cymbal (ride as "rhythm" in jazz slang is recorded from 1936).
wed (v.): Old English weddian "to pledge oneself, covenant to do something, vow; betroth, marry," also "unite (two other people) in a marriage, conduct the marriage ceremony," from Proto-Germanic *wadi- (cognates: Old Norse veðja, Danish vedde "to bet, wager," Old Frisian weddia "to promise," Gothic ga-wadjon "to betroth"), from PIE root *wadh- (1) "to pledge, to redeem a pledge" (cognates: Latin vas, genitive vadis "bail, security," Lithuanian vaduoti "to redeem a pledge").

The sense has remained closer to "pledge" in other Germanic languages (such as German Wette "a bet, wager"); development to "marry" is unique to English. "Originally 'make a woman one's wife by giving a pledge or earnest money', then used of either party" [Buck]. Passively, of two people, "to be joined as husband and wife," from c. 1200. Related: Wedded; wedding.
chemiosmotic: " Biochemistry . Of, relating to, or involving a process in which ions are translocated across a membrane to produce an electrochemical gradient, or diffuse passively down such a gradient; specifically designating a theory (now generally accepted) that energy for biochemical processes is supplied by creation of a gradient of hydrogen ion (proton) concentration across a membrane; relating to or conforming to this theory", Late 19th cent. From chemiosmosis, originally after German chemosmotisch.