On-blandan

According to the Old English Dictionary:

on-blandan

to intermingle, to infect (with moral evil) :-- Hé lungre áhóf wóðe wiðerhýdg weán onblonden he raised at once his voice, hostile and harmful (cf. the use of geblanden in similar phrases), Andr. Kmbl. 1350; An. 675. on-blandan