"You canker blossom!" 3 Shakespearean Insults
Old English gnagan (past tense *gnog, past participle gnagan) "to gnaw," a common Germanic word (cf. Old Saxon gnagan, Old Norse, Swedish gnaga, Middle Dutch, Dutch knagen, Old High German gnagan, German nagen "to gnaw"), probably imitative of gnawing. Related: Gnawed; gnawing.