"You canker blossom!" 3 Shakespearean Insults
early 15c., diminutive of spang "glittering ornament, spangle," probably from Middle Dutch spange "brooch, clasp," cognate with Old English spang "buckle, clasp," from Proto-Germanic *spango, from an extended form of the root of span (v.).
1540s, from spangle (n.). Related: Spangled; spangling.