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See also: Portus




  1. conditional of porti



From Proto-Italic *portus, from Proto-Indo-European *pértus (crossing). Cognates include Northern Kurdish pir (bridge), Russian пере́ть (perétʹ, push forward), Old Norse fjǫrðr (firth, fjord) and Old English ford (English ford). See also porta.



portus m (genitive portūs); fourth declension

  1. harbour, port
  2. haven, refuge, asylum, retreat
  3. warehouse


Fourth declension.

Case Singular Plural
Nominative portus portūs
Genitive portūs portuum
Dative portuī portibus
Accusative portum portūs
Ablative portū portibus
Vocative portus portūs

Derived terms[edit]



  • portus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • portus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • portus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
  • portus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to take refuge in philosophy: in portum philosophiae confugere
    • the ships sail from the harbour: naves ex portu solvunt
    • the ships sail out on a fair wind: ventum (tempestatem) nancti idoneum ex portu exeunt
    • to be unable to land: portu, terra prohiberi (B. C. 3. 15)
    • to keep the coast and harbours in a state of blockade: litora ac portus custodia clausos tenere
  • portus in Richard Stillwell et al., editor (1976) The Princeton Encyclopedia of Classical Sites, Princeton, N.J.: Princeton University Press
  • De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill