Home › Words › W › welldoerwelldoerwelldoer means one who does well; one who does good to another; a benefactor.Among words judged in Lexicurio's Arena, welldoer ranks #2,044 of 42,791 for Qualifying.EtymologyFrom well + doer.nounOne who does well; one who does good to another; a benefactor.Definitions & examples from Wiktionary (CC BY-SA 3.0).