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From pacīscor (agree, stipulate), from pacō (make or come to an agreement).



pactiō f (genitive pactiōnis); third declension

  1. The act of agreeing or covenanting; an agreement, covenant, contract, bargain, pact, treaty, truce.
  2. A corrupt bargaining, underhand agreement.
  3. A marriage contract.


Third declension.

Case Singular Plural
nominative pactiō pactiōnēs
genitive pactiōnis pactiōnum
dative pactiōnī pactiōnibus
accusative pactiōnem pactiōnēs
ablative pactiōne pactiōnibus
vocative pactiō pactiōnēs


  • (agreement, contract): pactum

Derived terms[edit]

Related terms[edit]


  • pactio in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • pactio in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • du Cange, Charles (1883), “pactio”, in G. A. Louis Henschel, Pierre Carpentier, Léopold Favre, editors, Glossarium Mediæ et Infimæ Latinitatis (in Latin), Niort: L. Favre
  • pactio 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.
    • to conclude a treaty with some one: pactionem facere cum aliquo (Sall. Iug. 40)
  • pactio in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin