perfidy

"someday Olaf's perfidy will end."
by phantomdweeb October 11, 2018
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perfidious

deceitful, treacherous, faithless, tending to betray
Billy is a very perfidious boyfriend.
by cumtome December 18, 2008
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Perfidy

The perfidy of the French is well known.
by Swampthing500 July 07, 2009
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