Wæl-rest

According to the Old English Dictionary:

-ræst, e;

wæl-rest

f. The rest or bed of the slain :-- Wælræste wunian to be dead, Beo. Th. 5796; B. 2902: Exon. Th. 184, 10; Gú. 1342. Wælreste ceósan to die, Cd. Th. 99, 8; Gen. 1643: Byrht. Th. 135, 5; By. 113. Sceal fǽge flǽschoma foldærne biþeaht wunian wælræste (inhabit the grave) Exon. Th. 164, 3; Gú. 1006. Sió ród foldan getýned wunode wælreste (lay buried), Elen. Kmbl. 1444; El. 724. wæl-rest