Definition of perfidy in English:

perfidy

Syllabification: per·fi·dy
Pronunciation: /ˈpərfidē
 
/

noun

literary
Deceitfulness; untrustworthiness.
More example sentences
  • I have been accused of perfidy, malingering, duplicity, charlatanism and forty other words that I don't know the meaning of.
  • 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.
Synonyms

Origin

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

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