英语词源字典 - 在线词源网站

well (n.)[well 词源字典]: "hole dug for water, spring of water," Old English wielle (West Saxon), welle (Anglian) "spring of water, fountain," from wiellan (see well (v.)). "As soon as a spring begins to be utilized as a source of water-supply it is more or less thoroughly transformed into a well" [Century Dictionary]. Figurative sense of "source from which anything is drawn" was in Old English.[well etymology, well origin, 英语词源]
well-acquainted (adj.): 1728, "having good acquaintance with," from well (adv.) + acquainted.
well-adjusted (adj.): 1735, in reference to mechanisms, etc., from well (adv.) + past participle of adjust (v.). In reference to emotional balance, recorded from 1959.
well-balanced (adj.): 1620s, from well (adv.) + past participle of balance (v.).
well-behaved (adj.): 1590s, from well (adv.) + past participle of behave (v.).
well-being (n.): 1610s, from well (adv.) + gerundive of be.
well-beloved (adj.): late 14c., from well (adv.) + beloved.
well-born (adj.): Old English welboren; see well (adv.) + born.
well-bred (adj.): 1590s, from well (adv.) + bred.
well-done (adj.): c. 1200, "wise, prudent," from well (adv.) + done. Meaning "thoroughly cooked," in reference to meat, is attested from 1747. Well done! as an exclamation of approval is recorded from mid-15c.
well-earned (adj.): 1730, from well (adv.) + past participle of earn (v.).
well-endowed (adj.): 1680s, "with ample material endowments," from well (adv.) + past participle of endow (v.). Sexual sense is attested from 1951. A Middle English term for "naturally well-endowed" was furnished in nature.
well-fed (adj.): mid-14c., from well (adv.) + past participle of feed (v.).
well-founded (adj.): late 14c., from well (adv.) + past participle of found (v.1).
well-heeled (adj.): "well-off, having much money, in good circumstances;" also "well-equipped," 1872, American English slang (originally in the "money" sense), from well (adv.) + colloquial sense of heeled. "[A]pplied to a player at cards who has a good hand, to a person who possesses plenty of money, or to a man who is well armed" [Century Dictionary]. From 1817 in a literal sense, in reference to shoes.
well-hung (adj.): 1610s, in male genital sense, from well (adv.) + hung (adj.).
well-informed (adj.): mid-15c., from well (adv.) + past participle of inform (v.).
well-intentioned (adj.): 1590s, from well (adv.) + intentioned (see intention).
well-kept (adj.): c. 1400, from well (adv.) + past participle of keep (v.).
well-known (adj.): late 15c., from well (adv.) + past participle of know (v.).