英语词源字典 - 在线词源网站

fat (n.)[fat 词源字典]: "fat part of anything," mid-14c., from fat (v.). Cognate with Dutch vet, German Fett, Swedish fett, Danish fedt. As a component of animal bodies, 1530s. Figurative sense of "best or most rewarding part" is from 1560s. Expression the fat is in the fire originally meant "the plan has failed" (1560s).[fat etymology, fat origin, 英语词源]
flesh (v.): 1520s, "to render (a hunting animal) eager for prey by rewarding it with flesh from a kill," with figurative extensions, from flesh (n.). Meaning "to clothe or embody with flesh," with figurative extensions, is from 1660s. Related: Fleshed; fleshing.
remunerative (adj.): 1620s, "inclined to remunerate," from remunerate + -ive. From 1670s as "rewarding;" 1859 as "profitable." Related: Remuneratively; remunerativeness.
reward (v.): c. 1300 "to grant, bestow;" early 14c. "to give as compensation," from Old North French rewarder "to regard, reward" (Old French regarder) "take notice of, regard, watch over," from re-, intensive prefix (see re-), + warder "look, heed, watch," from Germanic (see warder). Originally any form of requital. A doublet of regard. Related: Rewarded; rewarding.
yielding (adj.): late 14c., "generous in rewarding," present participle adjective from yield (v.). From 1660s as "giving way to physical force."