Lǽst

According to the Old English Dictionary:

lǽst

act, performance(?) :-- Nalles hige gehyrdon háliges láre siððan leófes leóþ lǽste neár swég swiðrode they did not neglect the holy one's [Moses] teaching, after the loved one's lay, when the time drew nearer for action [crossing the Red Sea], and his voice died away, Cd. 158; Th. 197, 17: Exod. 308. and cf. ful-lǽst, ge-lǽst. læst

Related words: Bouterwek's Cædmon i. 321;