Irre-weorc

According to the Old English Dictionary:

es;

irre-weorc

n. A work undertaken in anger :-- Engla drihten wile uppe heonan sáwla lǽdan and wé seoððan á ðæs yrreweorces hénþo geþoliaþ the Lord of angels will up from hence lead souls, and we ever after shall suffer the humiliation of that angry feat [the harrowing of Hell], Cd. 222; Th. 289, 17; Sat. 399. irre-weorc