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Alternative forms[edit]


Perfect passive participle of iaciō (throw, hurl; emit).



iactus m (feminine iacta, neuter iactum); first/second declension

  1. thrown, having been thrown, hurled, having been hurled, cast, having been cast, flung, having been flung; thrown away, having been thrown away
    Alea iacta est.
    The die is cast.
  2. laid, having been laid, set, having been set, established, having been established, built, having been built, founded, having been founded, constructed, having been constructed, erected, having been erected
  3. sent forth, having been sent forth, emitted, having been emitted; brought forth, having been brought forth, produced, having been produced
  4. scattered, having been scattered, sown, having been sown, thrown, having been thrown
  5. (as a shadow) projected, having been projected
  6. (figuratively) thrown out in speaking, having been thrown out in speaking, let fall, having been let fall, uttered, having been uttered, mentioned, having been mentioned, declared, having been declared


First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
nominative iactus iacta iactum iactī iactae iacta
genitive iactī iactae iactī iactōrum iactārum iactōrum
dative iactō iactō iactīs
accusative iactum iactam iactum iactōs iactās iacta
ablative iactō iactā iactō iactīs
vocative iacte iacta iactum iactī iactae iacta


iactus m (genitive iactūs); fourth declension

  1. throwing, hurling, casting
  2. throw, cast


Fourth declension.

Case Singular Plural
nominative iactus iactūs
genitive iactūs iactuum
dative iactuī iactibus
accusative iactum iactūs
ablative iactū iactibus
vocative iactus iactūs


  • Asturian: xeitu
  • Catalan: git
  • English: jet (through French)
  • French: jet


  • iactus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • du Cange, Charles (1883), “iactus”, in G. A. Louis Henschel, Pierre Carpentier, Léopold Favre, editors, Glossarium Mediæ et Infimæ Latinitatis (in Latin), Niort: L. Favre
  • iactus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français [Illustrated Latin-French Dictionary], Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • (ambiguous) to be out of range: extra teli iactum, coniectum esse