perfidy


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per·fi·dy

 (pûr′fĭ-dē)
n. pl. per·fi·dies
1. Deliberate breach of faith; calculated violation of trust; treachery: "the fink, whose perfidy was equaled only by his gall" (Gilbert Millstein).
2. The act or an instance of treachery.

[Latin perfidia, from perfidus, treacherous : per-, to destruction; see per- + fidēs, faith; see bheidh- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

perfidy

(ˈpɜːfɪdɪ)
n, pl -dies
a perfidious act
[C16: from Latin perfidia, from perfidus faithless, from per beyond + fidēs faith]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

per•fi•dy

(ˈpɜr fɪ di)

n., pl. -dies.
1. deliberate breach of faith or trust; faithlessness; treachery.
2. an act or instance of faithlessness or treachery.
[1585–95; < Latin perfidia faithlessness =perfid(us) faithless, treacherous (per- per- + -fidus, derivative of fidēs faith) + -ia -y3]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

perfidy

1. breach of trust, especially treachery or treason.
2. an act or instance of this. — perfidious, adj.
See also: Treason
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.perfidy - betrayal of a trustperfidy - betrayal of a trust      
disloyalty - the quality of being disloyal
insidiousness - the quality of being designed to entrap
2.perfidy - an act of deliberate betrayalperfidy - an act of deliberate betrayal  
knavery, dishonesty - lack of honesty; acts of lying or cheating or stealing
double cross, double-crossing - an act of betrayal; "he gave us the old double cross"; "I could no longer tolerate his impudent double-crossing"
sellout - an act of betrayal
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

perfidy

noun (Literary) treachery, betrayal, infidelity, treason, deceit, duplicity, disloyalty, double-dealing, falsity, faithlessness, perfidiousness He cited many examples to illustrate the perfidy of his adversaries.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

perfidy

noun
2. Willful betrayal of fidelity, confidence, or trust:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations

perfidy

[ˈpɜːfɪdɪ] N (liter) → perfidia f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

perfidy

[ˈpɜːrfədi] (literary) n (= treachery) → perfidie f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

perfidy

n (liter)Perfidie f (liter)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

perfidy

[ˈpɜːfɪdɪ] nperfidia
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in classic literature ?
In neither instance, as far as circumstances have been stated to us by different persons, do we see any reason to suspect the savage chiefs of perfidy in their overtures of friendship.
He spoke of woman's perfidy, of a wife who had broken her holiest vows, of a home and heart made desolate.
He is at this time transporting large armies of foreign mercenaries to compleat the works of death, desolation and tyranny, already begun with circumstances of Cruelty & perfidy scarcely paralleled in the most barbarous ages, and totally unworthy of the Head of a civilized nation.
Da Souza had purchased a morning paper at the junction, and their host's perfidy had become apparent.
The stick untied from Jerry's neck told the tale of her perfidy and incensed Lamai, who sprang between and deflected the blow with a stone poi-pounder that might have brained Jerry.
I'm sure I thought it would have comforted your la'ship, or I would have seen it at the devil before I would have touched it." "Honour," says Sophia, "you are a good girl, and it is vain to attempt concealing longer my weakness from you; I have thrown away my heart on a man who hath forsaken me." "And is Mr Jones," answered the maid, "such a perfidy man?" "He hath taken his leave of me," says Sophia, "for ever in that letter.
It doubles the security to the people, by requiring the concurrence of two distinct bodies in schemes of usurpation or perfidy, where the ambition or corruption of one would otherwise be sufficient.
Pelet, reproaching him with perfidy, sending him a challenge, or performing other gambadoes of the sort--I hit at last on the expedient of walking out in the cool of the morning to a neighbouring establishment of baths, and treating myself to a bracing plunge.
He feared, too, that Crooks and M'Lellan would take this opportunity to retort upon him the perfidy which they accused him of having used, two years previously, among these very Sioux.
The deserted damsel had personally appeared in court, and had borne energetic evidence to her lover's perfidy and the strength of her blighted affections.
He defended Louise against Raoul, and justified her perfidy by her love.
In the breast of the leader was the hope that he had planted enough of superstitious terror in their hearts to make the sight of the supposed author of their imagined wrongs sufficient provocation for his murder; for Bududreen was too sly to give the order for the killing of a white man--the arm of the white man's law was too long--but he felt that he would rest easier were he to leave the island with the knowledge that only a dead man remained behind with the secret of his perfidy.