A-feallan

According to the Old English Dictionary:

a-feallan

p.??? -feól, -feóll, pl. -feóllon; pp. -feallen To fall down; cadere :-- Ðæt hús afeóll domas cecidit. Lk. Bos. 6, 49: Cd. 202; Th. 251, 1; Dan. 557: Jud. 16, 30. Wearþ afeallen Æðelrǽdes eorl Ethelred's earl fell [in the battle], Byrht. Th. 137, 46; By. 202. a-feallan