"""Hel" is also etymologically related–although distantly that time–to the Old Norse word "Valhöll" (Valhalla, 'hall of the slain') and to the English word "hall", both likewise deriving from Proto-Indo-European "*ḱel-" via the Proto-Germanic root *"hallō-" ('covered place, hall').The "Poetic Edda", compiled in the 13th century from earlier traditional sources, features various poems that mention Hel.