well-heeled (adj.)youdaoicibaDictYouDict[well-heeled 词源字典]
"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-heeled etymology, well-heeled origin, 英语词源]