Feówerþe-móder

According to the Old English Dictionary:

feówerþe-móder

indecl. in sing; but dat, sing. -méder; pl. nom. acc. -módra; gen. -módra; dat. -módrum; f. A great-great-grandmother; ăbăvia, Ælfc. Gl. 91; Som. 75, 13; Wrt. Voc. 51, 58. feowerþe-moder