disclaim (v.)youdaoicibaDictYouDict[disclaim 词源字典]
c. 1400, from Anglo-French disclaimer, Old French desclamer "disclaim, disavow," from des- (see dis-) + clamer "to call, cry out, claim" (see claim (v.)). Related: Disclaimed; disclaiming.[disclaim etymology, disclaim origin, 英语词源]