treachery

Therefore being condemned by each for his treachery, he was driven forth from the light of day, and henceforth concealed himself in dark hiding-places, flying always alone and at night.

I said I looked upon it as a sacrilegious profanation to reward treachery, perhaps crime.”

“I perfectly well remember Perugia, sir, and the Hôtel des Postes, and the festival of which you speak,” said Madame de Villefort, “but in vain do I tax my memory, of whose treachery I am ashamed, for I really do not recall to mind that I ever had the pleasure of seeing you before.”

“Wretch!” exclaimed Haydée, her eyes flashing with rage; “he sold my father to the Turks, and the fortune he boasts of was the price of his treachery!