noun, plural per·fi·dies.
- perfector press,
- perfoliate bellwort,
Origin of perfidy
Examples from the Web for perfidy
And there was a crash involved—in Ukrainian perfidy and EU sanctions both.Up To a Point: Binge Watching Putin's Propaganda Network|P. J. O’Rourke|September 20, 2014|DAILY BEAST
Grace has been especially severe on the 12-person jury, which she has accused of all manner of perfidy.
The hunter struck the woman dead when he learned of her perfidy.Myths And Legends Of Our Own Land, Complete|Charles M. Skinner
The object of this perfidy yet escaped him; and reason and good sense could form no idea of the motive.
She thought for a long time over the possible innocence or perfidy of this man.The Works of Guy de Maupassant, Vol. 6|Guy de Maupassant
Natural difficulties you might have overcome, but you have been outmatched by perfidy and human weakness.The Field of Ice|Jules Verne
It is a fine line that divides a stratagem from an act of perfidy.Military Manners and Customs|James Anson Farrer
noun plural -dies
Word Origin for perfidy
1590s, from Middle French perfidie (16c.), from Latin perfidia "faithlessness, falsehood, treachery," from perfidus "faithless," from phrase per fidem decipere "to deceive through trustingness," from per "through" (see per) + fidem (nominative fides) "faith" (see faith).
[C]ombinations of wickedness would overwhelm the world by the advantage which licentious principles afford, did not those who have long practiced perfidy grow faithless to each other. [Samuel Johnson, "Life of Waller"]