Hweoðerian
Bosworth & Toller Anglo-Saxon Old English Dictionary - hweoðerian
According to the Old English Dictionary:
hwoðerian;
- hweoðerian
- p. ode To roar, be tempestuous :-- Se brym hwoðerode under his fótswaðum the sea roared under his footsteps, Homl. Th. ii. 388, 19.