"You canker blossom!" 3 Shakespearean Insults
mid-15c., metathesis of crulle (c.1300), probably from an unrecorded Old English word or from Middle Dutch krul "curly," from Proto-Germanic *krusl- (cf. East Frisian krull "lock of hair," Middle High German krol, Norwegian krull, Danish krølle "curl"). The noun is recorded from c.1600.