Eorþ-burh

According to the Old English Dictionary:

eorþ-burh

gen. -burge; dat. -byrig; f. An earth mound or burying place; agger, hŭmātio :-- To ðare eorþ-byrig to the earth mound, Cod. Dipl. Apndx. 335 ; A. D. 903 ; Kmbl. iii. 403, 31. eorþ-burh