Ag-lǽc-wíf

According to the Old English Dictionary:

es;

ag-lǽc-wíf

n. A wretch of a woman, vile crone; monstrum mu-lieris, mulier perniciosa :-- Grendles módor, ides, aglǽ c-wíf Grendel's mother, the woman, vile crone. Beo. Th. 2522 ; B. 1259. ag-læc-wif