Traitorous
Pronunciation : Trai"tor*ous
Part of Speech : a.
Etymology : [Cf. F. tra?treux.]
Definition : 1. Guilty of treason; treacherous; perfidious; faithless; as, a traitorous officer or subject. Shak.
2. Consisting in treason; partaking of treason; implying breach of allegiance; as, a traitorous scheme. -- Trai"tor*ous*ly, adv. -- Trai"tor*ous*ness, n.
Source : Webster's Unabridged Dictionary, 1913