ᚢᚾ- (un-, “un-; not”) + *ᚷᚨᚾᛞᚨᛉ (*gandaʀ, “foul spirit; a witch’s familiar”) + -ᛁᛉ (-iʀ, “-ed”, forms adjectives from nouns).
ᚢᚾᚷᚨᚾᛞᛁᛉ (ungandiʀ)