Fold-ærn

According to the Old English Dictionary:

es;

fold-ærn

n. [folde the earth, ærn a place] An earth-place, a cave, sepulchre; terrēnus lŏcus, sepulcrum :-- Foldærne fæst fast in the earth-house = sepulchre, Exon. 18b; Th. 45, 36; Cri. 730: 47b; Th. 163, 36; Gú. 1004. fold-ærn