Dennian

According to the Old English Dictionary:

dennian

p. ode, ade; pp. od, ad To become slippery; lubrĭcum fiĕri :-- Feld dennode [dennade, col. 1] secga swáte the plain became slippery with the blood of soldiers, Chr. 937; Th. 203, 10, col. 2; Æðelst. 12. dennian