"You canker blossom!" 3 Shakespearean Insults
Old English blætan, from West Germanic *bhle- (cf. Dutch blaten "to bleat"), of imitative origin (cf. Greek blekhe "a bleating; the wailing of children," Old Church Slavonic blejat "to bleat," Latin flere "to weep"). Related: Bleated; bleating.
c.1500, from bleat (v.).