Yfel-wyrde

According to the Old English Dictionary:

yfel-wyrde

adj. Given to use bad or abusive language :-- Gif mon bið ácenned on Frígedæg . . . hé yfele cræftas leornað, and he æfre bið yfelwyrde, E. S. 39, 354. [Cf. Icel. íll-oðr abusive.] yfel-wyrde