Mis-wider
Bosworth & Toller Anglo-Saxon Old English Dictionary - mis-wider
According to the Old English Dictionary:
es;
- mis-wider
- n. Bad weather, storm :-- Gif hwæt fǽrlíces on þeóde becymþ, beón hit hererǽsas, beón hit miswyderu oððon unwæstmas, Wulfst. 271, 2.