A-winnan

According to the Old English Dictionary:

a-winnan

p. -wan, pl. -wunnon; pp. -wunnen To labour, contend, gain, overcome; laborare, contendere, acquirere, nancisci, superare : Ǽlc wís mon scyle awinnan ǽgder ge wið ða réðan wyrde ge wið ða winsuman every wise man ought to contend both against the severe fortune and against the pleasant, Bt. 40, 3; Fox 238, 16. Ealles ðú ðæs wíte awunne for all this thou hast gained suffering, Exon. 39 b; Th. 130, 18 ; Gú. 440. Súsl wæs awunnen the pain was overcome, Cd. 208; Th. 257. 8 ; Dan. 654. DER. winnan. a-winnan