- Confidence
- Established
- Formation
- Inherited
- First attested
- Garigliano Bowl
- Inherited from
- Proto-Italic *trejes
- Ultimate origin
- Proto-Indo-European (*tréyes)
Pronunciation
Forms
trēs (neuter tria); third-declension two-termination numeral, plural only[1] The accusative masculine and feminine is also trīs; the Garigliano Bowl has the old ablative trifos.[2][3]
Etymology
It is inherited from Proto-Italic *trejes (“three”), inherited from Proto-Indo-European *tréyes (“three”).[2][1] Cognate with Oscan trís (“three”), Umbrian trif (“three”), Sanskrit त्रयस् (tráyas, “three”), Ancient Greek τρεῖς (treîs, “three”), Old Church Slavonic триѥ (trije, “three”) and English three.[2][4]
Earliest recorded meaning
The old Latin Garigliano Bowl has the ablative trifos, and it is in the Twelve Tables.[2]
Semantic evolution
In Classical Latin it was the number three, as Plautus' two or three minae and Cicero's three books on the nature of the gods.[3][5] It was also a typically small number, as in Terence's “you won't exchange three words today”.[4] The trēsvirī were the triumvirs in charge of the prisons and police.[5]
Its derivatives include tertius “third”, ter “thrice” and ternī “three each”.[2] Through Old French treis its neuter tria gave English trey, the three at cards or dice.[6] It survives as Italian tre, French trois and Romanian trei.[1]
Timeline
- c. 250–184 BC – Plautus speaks of three minae.[3][7]
- 190–159 BC – Terence uses it of a small number.[4][7]
- late 14th century – English trey is recorded.[6]
Meanings
Numeral
Related words
- tribus
- English three
- English trey
Usage notes
Isidore names Hebrew, Greek and Latin as the three sacred languages.[8]
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e 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 Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d e Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Isidore of Seville, Etymologiarum sive Originum libri XX, ed. W. M. Lindsay (Oxford, 1911).
Related etymologies
Cite this entry
“Tres.” Etymologically, 16 Oct. 2026, etymologically.com/la/tres. Accessed 16 Oct. 2026.
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