coveryoudaoicibaDictYouDict[cover 词源字典]
cover: [13] Cover comes ultimately from Latin cooperīre, a compound verb formed from the intensive prefix com- ‘completely’ and operīre ‘cover’ (a relative of aperīre ‘open’, from which English gets aperient). It passed into English via Old French cuvrir or covrir. Derivatives include coverlet [13] (in which the final element represents not the diminutive suffix but French lit ‘bed’, the word being a borrowing from Anglo-Norman covrelit, literally ‘bed-cover’) and kerchief (literally ‘head-cover’), as in handkerchief.
=> aperient, discover[cover etymology, cover origin, 英语词源]
cover (v.)youdaoicibaDictYouDict
mid-12c., from Old French covrir (12c., Modern French couvrir) "to cover, protect, conceal, dissemble," from Late Latin coperire, from Latin cooperire "to cover over, overwhelm, bury," from com-, intensive prefix (see com-), + operire "to close, cover" (see weir). Related: Covered; covering. Military sense is from 1680s; newspaper sense first recorded 1893; use in football dates from 1907. Betting sense is 1857. Of horses, as a euphemism for "copulate" it dates from 1530s. Covered wagon attested from 1745.
cover (n.)youdaoicibaDictYouDict
early 13c., in compounds, from cover (v.). Meaning "recording of a song already recorded by another" is 1966. Cover girl is U.S. slang from 1915, shortening of magazine-cover girl.