/yawr"moon rek'/ , n. Scand. Myth. (in the Poetic Edda and the Volsunga Saga )
king of the Goths, murderer of Svanhild, the daughter of Sigurd: killed by the Gjukungs; probably identical with Ermanaric (4th century A.D.), the Ostrogothic leader.
[ Jormunrek, equiv. to jormun- great + -rek ( r ), earlier -rikr (cf. rikr powerful, RICH); c. OE Eormenric ]