coverlet (n.)youdaoicibaDictYouDict[coverlet 词源字典]
c. 1300, perhaps a diminutive of cover (n.), but early form coverlite suggests an unrecorded Old French or folk-etymology *covre-lit, from covrir "to cover" + lit "bed" (see litter (n.)).[coverlet etymology, coverlet origin, 英语词源]