Deal deceitfully (treacherously, unfaithfully), offend...

Definition

a primitive root; to cover (with a garment); figuratively, to act covertly; by implication, to pillage; deal deceitfully (treacherously, unfaithfully), offend, transgress(-or), (depart), treacherous (dealer, -ly, man), unfaithful(-ly, man), [idiom] very.