Daff Morpheme Daff Type free base Denotation fool, idiot, stupid Etymology Middle English daf, daffe; Old Norse daufr Evidence bedaff, daff, daffed, daffier, daffiest, daffing, daffish, daffness, daffock, daffs, daffy Doublet Dof, Deaf, Dowf See Also Daft, Dof, Deaf, Dowf Share on FacebookTweetSave