Wæl-cræft

According to the Old English Dictionary:

es;

wæl-cræft

m. A deadly power, power which causes death :-- Ðonne mín hláford wile láfe þicgan ðara ðe hé of lífe hét wælcræf[tum] áwrecan (of those whom he has ordered to be slain), Exon. Th. 498, 11; Rä. 87, 11. wæl-cræft