perfidus

Latin

Etymology

From per (“through, along”) +‎ fidēs (“faith; trust”) +‎ -us (adjectival suffix), based on the phrase per fidem dēcipere[1]

Pronunciation

Adjective

perfidus (feminine perfida, neuter perfidum); first/second-declension adjective

  1. That breaks his promise; faithless, false, dishonest, treacherous, perfidious, deceitful.
  2. (by extension) Treacherous, unsafe, dangerous.
    Synonym: īnfīdus

Declension

First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative perfidus perfida perfidum perfidī perfidae perfida
Genitive perfidī perfidae perfidī perfidōrum perfidārum perfidōrum
Dative perfidō perfidō perfidīs
Accusative perfidum perfidam perfidum perfidōs perfidās perfida
Ablative perfidō perfidā perfidō perfidīs
Vocative perfide perfida perfidum perfidī perfidae perfida

Antonyms

Derived terms

Descendants
  • English: perfidious
  • French: perfide
  • Italian: perfido
  • Portuguese: pérfido
  • Spanish: pérfido

References
  • “perfidus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • “perfidus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • perfidus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette
  1. Walde, Alois; Hofmann, Johann Baptist (1938), “fidēs”, in Lateinisches etymologisches Wörterbuch (in German), volume I, 3rd edition, Heidelberg: Carl Winter, page 494
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.