A-limpan

According to the Old English Dictionary:

a-limpan

p. -lamp, pl. -lumpon; pp. -lumpen To happen, befall; evenire, accidere, contingere :-- Óþ-ðæt sǽl alamp until occasion offered, Beo. Th. 1249; B. 622. Ðá him alumpen wæs wén then hope had occurred to him, Beo. Th. 1471; B. 733. a-limpan