Eá-cerse
Bosworth & Toller Anglo-Saxon Old English Dictionary - eá-cerse
According to the Old English Dictionary:
an;
- eá-cerse
- f. Water-CRESS; nasturtium aquātĭcum :-- Eácersan getrifula oððe geseóþ on buteran bruise or seethe water-cress in butter, L. M. 1, 38; Lchdm. ii. 94, 4. ea-cerse