Gærs-bed

According to the Old English Dictionary:

-bedd, es;

gærs-bed

n. A grass-bed, grave; sub cæspĭte lectus, sepulcrum :-- Ðonne he gást ofgifeþ, syððan hine (?) gærsbedd sceal wunian when he gives up his spirit, then must he inhabit a grave, Ps. Th. 102, 15. gærs-bed