coverture (n.)youdaoicibaDictYouDict[coverture 词源字典]
early 13c., earliest reference is to bedcovers, from Old French coverture (12c.) "blanket; roof; concealment," from Latin *coopertura, from past participle stem of cooperire "to cover" (see cover (v.)). Most modern senses had evolved by mid-15c.[coverture etymology, coverture origin, 英语词源]