Bi-mútian

According to the Old English Dictionary:

bi-mútian

p. ade; pp. ad [mútung mutuum, Cot. 136] To exchange for; commutare :-- Swá ðás woruldgestreón on ða mǽran gód bimútad weorþaþ so these world-treasures shall be exchanged for the greater good, Exon. 33 b; Th. 106, 17; Gú. 42. bi-mutian