treachery

“[C]owardice is worse, treachery is worse, and simple selfishness is worse,” he said.

My husband is blind, Micheline unsuspicious, and Serge smiles quietly, as if he were preparing some treachery.

Napoleon, overcome by all this misfortune and treachery which fell upon him, did what they required of him.

The act of treachery was consummated and the chief captured.

To forget his treachery, he enters into a clandestine relationship with an actress of the town.

Treachery, or, perhaps worse, a kind of poised—and poisonous—mental judo?