- Confidence
- Established
- Formation
- Inherited
- First attested
- Twelve Tables
- Inherited from
- Proto-Italic *portu-
- Ultimate origin
- Proto-Indo-European (*pr-tu-)
Pronunciation
Forms
portus m (genitive portūs); fourth declension[1]
Etymology
It is inherited from Proto-Italic *portu- (“harbour”), inherited from Proto-Indo-European *pr-tu- (“crossing, ford”), a u-stem “passage, crossing” from the root Proto-Indo-European *per- (“to cross”), which also gave porta.[2][1][3]
Cognate with Avestan pərətu- (“crossing, bridge”), Welsh rhyd (“ford”), Old English ford and Old Norse fjǫrðr (“fjord”).[2][4][1]
Earliest recorded meaning
The Laws of the Twelve Tables use it, probably meaning a door.[3][5] Naevius prays to the north wind to carry Orestes into the nearby harbour.[3]
Semantic evolution
Its first meaning was an entrance or passage, which survives in angiportus “alley”; the Twelve Tables use it, according to Festus, of a house door.[6][3] It meant a harbour or port, as Plautus' “our ship sets sail from the harbour” and Cicero's famous port of Caieta.[3][7]
Figuratively it meant a refuge, a haven from trouble, and it also meant a warehouse.[3] Isidore says it is a place sheltered from winds, named from carrying goods (deportare).[8] In medieval Latin it meant a river landing, a ferry and ferry dues.[9] Romance kept it, as Italian porto and Spanish puerto, and English port “harbour” comes from it through Old English.[1][10]
Timeline
- c. 450 BC – The Twelve Tables use it.[3][5]
- c. 235–200 BC – Naevius uses it of a harbour.[3][5]
- c. 250–184 BC – Plautus uses it of a ship setting sail.[3][5]
- 81–43 BC – Cicero writes of the famous port of Caieta.[7][5]
Meanings
Noun
- A harbour, port.[3][1]
- A refuge, haven.[3][1]
- A warehouse.[3][1]
- (Twelve Tables) A door.[3]
- (Medieval Latin) A landing stage; a ferry; ferry dues.[9]
Word family
- portensis
- portuōsus
- Portūnus
- angiportum
- angiportus
- importūnus
- oportūnus
- portitor
Related words
References
- ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c d e f g h i j k l m Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ a b Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ Isidore of Seville, Etymologiarum sive Originum libri XX, ed. W. M. Lindsay (Oxford, 1911).
- ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
- ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Related etymologies
- opus · also from Proto-Indo-European
- albus · also from Proto-Indo-European
- potis · also from Proto-Indo-European
- salvus · also from Proto-Indo-European
- socius · also from Proto-Indo-European
- signum · also from Proto-Indo-European
- frater · also from Proto-Indo-European
- foedus · also from Proto-Indo-European
Cite this entry
“Portus.” Etymologically, 15 Oct. 2026, etymologically.com/la/portus. Accessed 15 Oct. 2026.
Last edited on . ·