myrkriðanafnorðkvenkynmyrk-riðau, f. the ‘mirk-rider,’ an ogress, witch, for witches were supposed to ride on wolves by night, Hb. 20, Edda (Gl.)Skammstafanir og tilvitnanirf.kvenkyn (e. feminine)Hb.Hauks-bók. (H. IV.)EddaEdda. (C. I.)