Waþem(-um)
Bosworth & Toller Anglo-Saxon Old English Dictionary - waþem(-um)
According to the Old English Dictionary:
es;
- waþem(-um)
- m. A wave, billow :-- Ic þonan wód ofer waþema gebind I crossed the band of billows, Exon. Th. 288, 1; Wand. 24. Waðema streám, sincalda sǽ, Cd. Th. 207, 24; Exod. 471.