Ofer-weorc
Bosworth & Toller Anglo-Saxon Old English Dictionary - ofer-weorc
According to the Old English Dictionary:
es;
- ofer-weorc
- n. A superstructure, a tomb :--Oferwurces sarcophagi, tumba. Hpt. Gl. 488, 51. [Oferr þatt arrke wuss An oferwerrc wel, timmbredd (the mercy-seat), Orm. 1035.]