quitclaim (n.)youdaoicibaDictYouDict[quitclaim 词源字典]
"a relinquishing of a legal right or claim," c. 1300, from Anglo-French quiteclame; see quit (v.) + claim (n.). Compare Old French clamer quitte "to give up (a right)."[quitclaim etymology, quitclaim origin, 英语词源]