Old English wund "hurt, injury, ulcer," from Proto-Germanic *wuntho (source also of Old Saxon wunda, Old Norse und, Old Frisian wunde, Old High German wunta, German wunde "wound"), perhaps from PIE root *wen- (2) "to beat, wound."
Old English wundian "to wound," from the source of wound (n.). Cognate with Old Frisian wundia, Middle Dutch and Dutch wonden, Old High German wunton, German verwunden, Gothic gawundon. Figurative use, of feelings, etc., from c. 1200. Related: Wounded; wounding.