英语词源字典 - 在线词源网站

cholesterol (n.)[cholesterol 词源字典]: white, solid substance present in body tissues, 1894, earlier cholesterin, from French cholestrine (Chevreul, 1827), from Greek khole "bile" (see cholera) + steros "solid, stiff" (see sterility). So called because originally found in gallstones (Conradi, 1775). The name was changed to the modern form (with chemical suffix -ol, denoting an alcohol) after the compound was discovered to be a secondary alcohol.[cholesterol etymology, cholesterol origin, 英语词源]
unwholesome (adj.): c. 1200, from un- (1) "not" + wholesome (adj.). Similar formation in Flemish onheylsaem, German unheilsam, Old Norse uheilsamr.
wholesale (adj.): early 15c., "in large quantities," from whole (adj.) + sale; the general sense of "extensive" is attested from 1640s. As a verb from 1800. Related: Wholesaling; wholesaler.
wholesome (adj.): c. 1200, "of benefit to the soul," from whole (adj.) in the "healthy" sense + -some (1). Physical sense first attested late 14c. Related: Wholesomely; wholesomeness. Old English had halwende.