英语词源字典 - 在线词源网站

fossilize (v.)[fossilize 词源字典]: 1794 (transitive), from fossil + -ize. Intransitive use from 1828. Figurative use from 1856. Related: Fossilized; fossilizing.[fossilize etymology, fossilize origin, 英语词源]
foster (v.): Old English *fostrian "to supply with food, nourish, support," from fostor "food, nourishment, bringing up," from Proto-Germanic *fostra-, from extended form of PIE root *pa- "to protect; feed" (see food).

Meaning "to bring up a child with parental care" is from c. 1200; that of "to encourage or help grow" is early 13c. of things; 1560s of feelings, ideas, etc. Old English also had the word as an adjective meaning "in the same family but not related," in fostorfæder, fostorcild, fostormodoretc. Related: Fostered; fostering.
fosterage (n.): 1610s, "the rearing of another's child as one's own," from foster (v.) + -age.
fought: past tense and past participle of fight (v.). The past participle form foughten (Old English fohten) has been archaic since 18c. but occasionally appears in the phrase foughten field.
foul (adj.): Old English ful "rotten, unclean, vile, corrupt, offensive to the senses," from Proto-Germanic *fulaz (cognates: Old Saxon and Old Frisian ful, Middle Dutch voul, Dutch vuil, Old High German fül, German faul, Gothic füls), from PIE *pu- (2) "to rot, decay," perhaps from the sound made in reaction to smelling something bad (see pus).

Old English ful occasionally meant "ugly" (as contrasted with fæger (adj.), modern fair (adj.)), and this sense became frequent in Middle English. The cognate in Swedish is the usual word for "ugly." Of weather from mid-14c. In the sporting sense of "irregular, unfair, contrary to established rule or practice" it is first attested 1797, though foul play is recorded from mid-15c. Baseball sense of "out of play" attested by 1860.
foul (v.): Old English fulian "to become foul, rot, decay," from ful (see foul (adj.)). Transitive meaning "make foul, pollute" is from c. 1200. Meaning "become entangled" (chiefly nautical) is from 1832, probably from foul (adj.) in the sense "obstructed by anything fixed or attached" (late 15c.). "A term generally used in contrast to clear, and implies entangled, embarrassed or contrary to: e.g. to foul the helm, to find steerage impracticable owing to the rudder becoming entangled with rope or other gear" [Sir Geoffrey Callender, "Sea Passages," 1943]. Related: Fouled; fouling. Hence also foul anchor (1769), one with the slack of the cable twisted round the stock or a fluke; noted by 1832 as naval insignia.
foul-mouthed (adj.): also foulmouthed, 1590s, apparently first in Shakespeare ["Henry IV," 1596]. Earlier were foul-tongued (1540s); foul-spoken (1580s).
foully (adv.): Old English fullice; see foul (adj.) + -ly (2).
foulmart (n.): "polecat," Middle English, from foul (adj.) + Old English mearþ "marten" (see marten).
foulness (n.): Old English fulness "foulness, filthy smell;" see foul (adj.) + -ness. Similar formation in Old Frisian fulnisse, Dutch vuilnis, German fäulniss.
found (v.1): "lay the basis of, establish," late 13c., from Old French fonder "found, establish; set, place; fashion, make" (12c.), from Latin fundare "to lay the bottom or foundation" of something, from fundus "bottom, foundation" (see fund (n.)). Related: Founded; founding. Phrase founding fathers with reference to the creators of the American republic is attested from 1916.
found (v.2): "to cast metal," late 14c., originally "to mix, mingle," from Old French fondre "pour out, melt, smelt" (12c.), from Latin fundere (past participle fusus) "melt, cast, pour out," from PIE root *gheu- "to pour" (cognates: Greek khein "to pour," khoane "funnel," khymos "juice;" Gothic giutan, German gießen, Old English geotan "to pour;" Old English guttas (plural) "bowels, entrails;" Old Norse geysa "to gush;" German Gosse "gutter, drain"). Meaning "to cast metal" is from 1560s. Related: Founded; founding.
found (adj.): "discovered," late 14c., past participle adjective from find (v.). Expression and found attached to the wages or charges in old advertisements for job openings, travelling berths, etc., indicates that meals are provided. It comes from the expression to find one's self "to provide for one's self." "When a laborer engages to provide himself with victuals, he is said to find himself, or to receive day wages" [Bartlett, "Dictionary of Americanisms," 1848]. Hence, so much and found for "wages + meals provided."
foundation (n.): late 14c., "action of founding," from Old French fondacion "foundation" (14c.) or directly from Late Latin fundationem (nominative fundatio) "a founding," noun of action from past participle stem of Latin fundare "to lay a bottom or foundation" (see found (v.1)). The Latin word is glossed in Old English by staþol.

Specialized sense of "establishment of an institution with an endowment to pay for it" is from late 14c.; meaning "that which is founded" (a college, hospital, etc.) is from 1510s; meaning "funds endowed for benevolent or charitable purposes" is from early 15c. Sense of "solid base of a structure" is from early 15c.
foundational (adj.): 1680s, from foundation + -al (1). Related: Foundationally.
founder (v.): early 14c. "to send to the bottom" (transitive); late 14c., "to sink or fall" (intransitive), from Old French fondrer "collapse; submerge, sink, fall to the bottom" (Modern French fondrier), from fond "bottom" (12c.), from Latin fundus "bottom, foundation" (see fund (n.)). Not especially of ships in Middle English, where it typically meant "fall to the ground." Figurative use from 1580s. Related: Foundered; foundering.
founder (n.1): "one who establishes, one who sets up or institutes (something)," mid-14c., from Anglo-French fundur, Old French fondeor "founder, originator" (Modern French fondateur), from Latin fundator, agent noun from fundare "to lay a foundation" (see found (v.1)). Fem. form foundress is from early 15c.; also fundatrix (1540s).
founder (n.2): "one who casts metal," c. 1400, agent noun from found (v.2).
foundling (n.): "deserted infant," c. 1300, from Middle English founden "found," past participle of finden (see find (v.)) + diminutive suffix -ling. Compare Dutch vondeling, German Findling. Middle English also had finding in this sense (late 14c.).
foundry (n.): c. 1600, "art of casting metal," from French fonderei, from fondre "to cast" (see found (v.2)). Meaning "establishment for the founding of metallic articles" is from 1640s. Related: Foundryman.