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  1. conditional of falsi



Perfect passive participle from fallō (deceive, trick; mistake).



falsus (feminine falsa, neuter falsum, superlative falsissimus); first/second-declension participle

  1. deceived, tricked, cheated, disappointed, having been deceived
  2. mistaken, having been mistaken, having deceived myself
  3. appeased, beguiled, having been appeased
  4. sworn falsely, perjured, having been sworn falsely
  5. (by extension) false, untrue


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative falsus falsa falsum falsī falsae falsa
Genitive falsī falsae falsī falsōrum falsārum falsōrum
Dative falsō falsō falsīs
Accusative falsum falsam falsum falsōs falsās falsa
Ablative falsō falsā falsō falsīs
Vocative false falsa falsum falsī falsae falsa



falsus m (genitive falsī); second declension

  1. liar, deceiver


Second-declension noun.

Case Singular Plural
Nominative falsus falsī
Genitive falsī falsōrum
Dative falsō falsīs
Accusative falsum falsōs
Ablative falsō falsīs
Vocative false falsī

Related terms[edit]


  • falsus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • falsus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • falsus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
  • falsus in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • Carl Meißner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to be imbibing false opinions: opinionibus falsis imbui
    • to distinguish true and false: vera et falsa (a falsis) diiudicare
    • to confuse true with false: vera cum falsis confundere
    • to start from false premises: a falsis principiis proficisci
    • to rouse a vain, groundless hope in some one's mind: spem falsam alicui ostendere
    • to accuse a person of forging the archives: accusare aliquem falsarum tabularum