Eá-riþ
Bosworth & Toller Anglo-Saxon Old English Dictionary - eá-riþ
According to the Old English Dictionary:
es;
- eá-riþ
- m. A water-stream; aquae rīvus :-- Ðǽr synd fúle eáriþas yrnende there are foul running water-streams, Guthl. 3; Gdwin. 20, 5. ea-riþ