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perfidy

noun

  1. (disloyalty)  betrayal of a trust
    Synonyms: perfidiousness, treachery. Type of: disloyalty
  2. (dishonesty)  an act of deliberate betrayal
    Synonyms: backstabbing, betrayal, treachery, treason. Type of: dishonesty

Etymology summary

Middle French perfidie, from Latin perfidia "falsehood, treachery", from...
(Source: Online Etymology)  [more]

Definition references

Wikipedia:

Perfidy

a form of deception, in which one side promises to act in good faith with the intention of breaking that promise once the enemy has exposed themselves. The practice is specifically prohibited under the 1977 Protocol I Additional to the Geneva... (41 of 627 words)

en​.wikipedia​.org​/wiki​/Perfidy

Perfidy (disambiguation)

may refer to: Perfidy in war, a criminal form of deception, in which one side promises to act in good faith (e.g. by raising a flag of surrender) with the intention of breaking that promise once the enemy has exposed himself. | Perfidy (film) (1953),... (44 of 142 words, 4 definitions)

en​.wikipedia​.org​/wiki​/Perfidy (disambiguation)

Collins Dictionary:

perfidy | perfidies [plural]

a perfidious act (3 of 381 words, 8 usage examples, pronunciation)

www​.collinsdictionary​.com​/dictionary​/english​/perfidy

Merriam-Webster:

perfidy | perfidies [plural] | treachery [synonym, sense-specific] | disloyalty [synonym, sense-specific] | faithlessness [synonym, sense-specific] | falseness [synonym, sense-specific] | falsity [synonym, sense-specific] | inconstancy [synonym, sense-specific] | perfidiousness [synonym, sense-specific] | ...

the quality or state of being faithless or disloyal; "treachery" | an act or an instance of disloyalty (17 of 260 words, 2 definitions, 1 usage example, pronunciation)

www​.merriam-webster​.com​/dictionary​/perfidy

Wiktionary:

perfidy | perfidies [plural] | perfidiousness [synonym, sense-specific] | faithlessness [synonym, sense-specific] | treachery [synonym, sense-specific]

A state or act of violating faith or allegiance; violation of a promise or vow, or of trust reposed; faithlessness; treachery. | [law] Specifically, in warfare, an illegitimate act of deception, such as using symbols like the Red Cross or white flag to... (42 of 143 words, 3 definitions, 6 usage examples, pronunciations)

en​.wiktionary​.org​/wiki​/perfidy

Oxford Dictionary:

perfidy [literary]

the state of being deceitful and untrustworthy (7 of 55 words, 2 usage examples, pronunciation)

oxforddictionaries​.com​/definition​/english​/perfidy

perfidy | deceitfulness [synonym, sense-specific]

Syllabification: (per·fi·dy) | [literary] | deceitfulness; untrustworthiness. (5 of 43 words, 3 definitions, pronunciation)

oxforddictionaries​.com​/definition​/american english​/perfidy

American Heritage Dictionary:

perfidy | perfidies [plural]

Deliberate breach of faith; calculated violation of trust; treachery | The act or an instance of treachery. (16 of 52 words, 2 definitions, 1 usage example, pronunciation)

www​.yourdictionary​.com​/perfidy

New World Dictionary:

perfidy | perfidies [plural]

the deliberate breaking of faith; betrayal of trust; treachery (9 of 37 words, pronunciation)

www​.yourdictionary​.com​/perfidy

Macmillan British Dictionary:

perfidy [uncountable, literary]

behaviour that shows that someone cannot be trusted (8 of 33 words, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/perfidy

Random House Dictionary:

perfidy | perfidies [plural]

deliberate breach of faith or trust; faithlessness; treachery. | an act or instance of faithlessness or treachery. (16 of 29 words, 2 definitions, 1 usage example, pronunciation)

dictionary​.infoplease​.com​/perfidy

Cambridge Dictionary:

perfidy [literary]

behaviour which is not loyal (5 of 11 words, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/perfidy

Encarta Dictionary:

perfidy [formal]

treachery or deceit (3 of 41 words, pronunciations)

encarta​.msn​.com​/dictionary 1861724990​/definition​.html  [offline]

Etymology references

Online Etymology:

perfidy

First use: 1590s

Origin: Middle French perfidie, from Latin perfidia "falsehood, treachery", from perfidus "faithless", from phrase per fidem ... (16 of 60 etymology words)

www​.etymonline​.com​/index​.php term=perfidy

New World Dictionary:

perfidy | perfidies [plural]

Origin: French perfidie from Latin perfidia from perfidus, faithless from per fidem (decipi), (to deceive) through faith from per (see "per") + fides, "faith"

www​.yourdictionary​.com​/perfidy

Oxford Dictionary:

perfidy [literary]

First use: late 16th century

Origin: French from Latin perfidia, from perfidus "treacherous", based on per- "to ill effect" + fides "faith"

oxforddictionaries​.com​/definition​/english​/perfidy

American Heritage Dictionary:

perfidy | perfidies [plural]

Origin: Latin perfidia, from perfidus, treacherous: per-, to destruction; see "per-" + fidēs, faith; see bheidh- in Indo-European roots.

www​.yourdictionary​.com​/perfidy

Wiktionary:

perfidy | perfidies [plural]

Origin: Latin perfidus ("faithless, treacherous, false"), from fides ("faith"); related to, for example, English fidelity.

en​.wiktionary​.org​/wiki​/perfidy

Collins Dictionary:

perfidy | perfidies [plural]

First use: 16th century

Origin: from Latin perfidia, from perfidus faithless, from per beyond + fidēs faith

www​.collinsdictionary​.com​/dictionary​/english​/perfidy

Merriam-Webster:

perfidy | perfidies [plural]

First use: 1592

Origin: Latin perfidia, from perfidus faithless, from per- detrimental to + fides faith, faith

www​.merriam-webster​.com​/dictionary​/perfidy

Encarta Dictionary:

perfidy [formal]

First use: Late 16th century

Origin: Latin perfidia from perfidus "treacherous" from per fidem decipere "deceive through trustingness" from fides "faith, trust"

encarta​.msn​.com​/dictionary 1861724990​/definition​.html  [offline]

Audio references

Collins Dictionary:

perfidy | perfidies [plural]

Audio: North American English pronunciation of "perfidy"

www​.collinsdictionary​.com​/dictionary​/english​/perfidy

Macmillan British Dictionary:

perfidy [uncountable, literary]

Audio: British English pronunciation of "perfidy"

www​.macmillandictionary​.com​/dictionary​/british​/perfidy

Macmillan American Dictionary:

perfidy [uncountable, literary]

Audio: North American pronunciation of "perfidy"

www​.macmillandictionary​.com​/dictionary​/american​/perfidy

Cambridge Dictionary:

perfidy [literary]

Audio 1: British English pronunuciation of "perfidy"

Audio 2: North American English pronunuciation of "perfidy"

dictionary​.cambridge​.org​/dictionary​/british​/perfidy

the Free Dictionary:

perfidy

Audio 1: British English pronunciation of "perfidy"

Audio 2: North American English pronunciation of "perfidy" by speech synthesizer

www​.thefreedictionary​.com​/perfidy

Google Dictionary:

perfidy | perfidies [plural]

Audio: English pronunciation of "perfidy"

www​.google​.com​/#hl=en&tbs=dfn​:1&fp=1&q=perfidy

Merriam-Webster Pronunciation:

perfidy

Audio: North American pronunciation of "perfidy"

www​.merriam-webster​.com​/audio​.php file=perfid​02 word=perfidy

YourDictionary Audio:

perfidy

Audio: North American English pronunciation of "perfidy" by speech synthesizer

www​.yourdictionary​.com​/perfidy

Page last updated: 2013-06-26

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