Definition of perfidy in English:

perfidy

noun ˈpəːfɪdiˈpərfədi

mass nounliterary

The state of being deceitful and untrustworthy.
it was an example of his perfidy
Hapsburg perfidy
Example sentencesExamples
- They brook no compromise and instead repay those who would reach out to them with furious perfidy unless they show absolute fealty to every facet of the program.
- Think of the valiant whistleblower inside a corporation or an agency who puts himself at risk to uncover criminal perfidy.
- With possible political perfidy such a hot topic at Westminster, it is with perfect timing that the Lyceum and Citizens' theatres bring two of England's great plays of history and politics to the stage.
- His book is a tale of cowardice, perfidy, hubris, idiocy and occasional heroism - told with considerable panache.
- I have been accused of perfidy, malingering, duplicity, charlatanism and forty other words that I don't know the meaning of.
Synonyms
treachery, duplicity, deceit, perfidiousness, deceitfulness, disloyalty, infidelity, faithlessness, unfaithfulness, betrayal, treason, falseness, falsity, double-dealing, dishonesty, two-facedness, untrustworthiness, breach of trust
rare false-heartedness, Punic faith

Origin

Late 16th century: via French from Latin perfidia, from perfidus 'treacherous', based on per- 'to ill effect' + fides 'faith'.

This literary word for ‘deceitfulness’ came via French from Latin perfidia ‘treachery’, from perfidus ‘treacherous’, based on per- ‘to ill effect’ and fides ‘faith’. The adjective perfidious dates from the same period. The expression perfidious albion is a translation of the French perfide Albion; the phrase appears to have been first used by the Marquis de Ximenès (1726–1817) with reference to the British joining the allies who were already fighting France in 1793, but was popularized during a recruitment campaign under Napoleon I in 1813. It was adopted into German (in its French form) during the early 19th century and had become naturalized by the time of Bismarck. It was used in German anti-British propaganda during the First World War (1914–18), and during the Second World War (1939–45) to undermine French trust in Britain as an ally.

Definition of perfidy in US English:

perfidy

nounˈpərfədēˈpərfədi

literary

Deceitfulness; untrustworthiness.
〈诗/文〉背信弃义；不可信赖
it was an example of his perfidy
Hapsburg perfidy
Example sentencesExamples
- Think of the valiant whistleblower inside a corporation or an agency who puts himself at risk to uncover criminal perfidy.
- They brook no compromise and instead repay those who would reach out to them with furious perfidy unless they show absolute fealty to every facet of the program.
- I have been accused of perfidy, malingering, duplicity, charlatanism and forty other words that I don't know the meaning of.
- His book is a tale of cowardice, perfidy, hubris, idiocy and occasional heroism - told with considerable panache.
- With possible political perfidy such a hot topic at Westminster, it is with perfect timing that the Lyceum and Citizens' theatres bring two of England's great plays of history and politics to the stage.
Synonyms
treachery, duplicity, deceit, perfidiousness, deceitfulness, disloyalty, infidelity, faithlessness, unfaithfulness, betrayal, treason, falseness, falsity, double-dealing, dishonesty, two-facedness, untrustworthiness, breach of trust

Origin

Late 16th century: via French from Latin perfidia, from perfidus ‘treacherous’, based on per- ‘to ill effect’ + fides ‘faith’.

词汇	perfidy
释义	Definition of perfidy in English: perfidy noun ˈpəːfɪdiˈpərfədi mass nounliterary The state of being deceitful and untrustworthy. it was an example of his perfidy Hapsburg perfidy Example sentencesExamples They brook no compromise and instead repay those who would reach out to them with furious perfidy unless they show absolute fealty to every facet of the program. Think of the valiant whistleblower inside a corporation or an agency who puts himself at risk to uncover criminal perfidy. With possible political perfidy such a hot topic at Westminster, it is with perfect timing that the Lyceum and Citizens' theatres bring two of England's great plays of history and politics to the stage. His book is a tale of cowardice, perfidy, hubris, idiocy and occasional heroism - told with considerable panache. I have been accused of perfidy, malingering, duplicity, charlatanism and forty other words that I don't know the meaning of. Synonyms treachery, duplicity, deceit, perfidiousness, deceitfulness, disloyalty, infidelity, faithlessness, unfaithfulness, betrayal, treason, falseness, falsity, double-dealing, dishonesty, two-facedness, untrustworthiness, breach of trust rare false-heartedness, Punic faith Origin Late 16th century: via French from Latin perfidia, from perfidus 'treacherous', based on per- 'to ill effect' + fides 'faith'. This literary word for ‘deceitfulness’ came via French from Latin perfidia ‘treachery’, from perfidus ‘treacherous’, based on per- ‘to ill effect’ and fides ‘faith’. The adjective perfidious dates from the same period. The expression perfidious albion is a translation of the French perfide Albion; the phrase appears to have been first used by the Marquis de Ximenès (1726–1817) with reference to the British joining the allies who were already fighting France in 1793, but was popularized during a recruitment campaign under Napoleon I in 1813. It was adopted into German (in its French form) during the early 19th century and had become naturalized by the time of Bismarck. It was used in German anti-British propaganda during the First World War (1914–18), and during the Second World War (1939–45) to undermine French trust in Britain as an ally. Definition of perfidy in US English: perfidy nounˈpərfədēˈpərfədi literary Deceitfulness; untrustworthiness. 〈诗/文〉背信弃义；不可信赖 it was an example of his perfidy Hapsburg perfidy Example sentencesExamples Think of the valiant whistleblower inside a corporation or an agency who puts himself at risk to uncover criminal perfidy. They brook no compromise and instead repay those who would reach out to them with furious perfidy unless they show absolute fealty to every facet of the program. I have been accused of perfidy, malingering, duplicity, charlatanism and forty other words that I don't know the meaning of. His book is a tale of cowardice, perfidy, hubris, idiocy and occasional heroism - told with considerable panache. With possible political perfidy such a hot topic at Westminster, it is with perfect timing that the Lyceum and Citizens' theatres bring two of England's great plays of history and politics to the stage. Synonyms treachery, duplicity, deceit, perfidiousness, deceitfulness, disloyalty, infidelity, faithlessness, unfaithfulness, betrayal, treason, falseness, falsity, double-dealing, dishonesty, two-facedness, untrustworthiness, breach of trust Origin Late 16th century: via French from Latin perfidia, from perfidus ‘treacherous’, based on per- ‘to ill effect’ + fides ‘faith’.
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