"You canker blossom!" 3 Shakespearean Insults
also birth-mark, by 1805, from birth (n.) + mark (n.1). Birth marks in 17c. could be longing marks; supposedly they showed the image of something longed for by the mother while expecting. Related: Birthmarked.
birthmark birth·mark (bûrth'märk')n. A mole or blemish present on the skin from birth; a nevus.