different between perfidiousness vs perfidy

English

Etymology

perfidious +? -ness

Noun

perfidiousness (usually uncountable, plural perfidiousnesses)

1. (rare) Unfaithfulness; deceitfulness; perfidy.
   • 1781, Samuel Johnson, "Addison" in Lives of the Poets:

     Not only Cato is vanquished by Caesar, but the treachery and perfidiousness of Syphax prevail over the honest simplicity and the credulity of Juba.

Related terms

• perfidious
• perfidiously

References

• Webster, Noah (1828) , “perfidiousness”, in An American Dictionary of the English Language
• perfidiousness in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• “perfidiousness” in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.

English

Etymology

From Middle French perfidie, from Latin perfidus (“faithless, treacherous, false”), from fides (“faith”); related to, for example, English fidelity.

Pronunciation

• (UK) IPA^(key): /?p??.f?.di/
• (US) IPA^(key): /?p?.f?.di/

Noun

perfidy (countable and uncountable, plural perfidies)

1. A state or act of violating faith or allegiance; violation of a promise or vow, or of trust

   Synonyms: treachery, betrayal

2. (law) Specifically, in warfare, an illegitimate act of deception, such as using symbols like the Red Cross or white flag in a false claim of surrender to gain proximity to an enemy for purposes of attack.
3. A state or act of deceit.

Quotations

• For more quotations using this term, see Citations:perfidy.

Synonyms

• perfidiousness

Related terms

• perfidious
• perfidiously

Translations