Brim-wylm
Bosworth & Toller Anglo-Saxon Old English Dictionary - brim-wylm
According to the Old English Dictionary:
es;
- brim-wylm
- m. [brim, wylm æstus] The sea's surge; maris æstus :-- Brimwylm onféng hilde rince the sea's surge received the man of war, Beo. Th. 2993; B. 1494. brim-wylm