tertius

Latin

Latin numbers ^(edit)

	30[a], [b]
[a], [b] ←  2	III 3	4  →
Cardinal: trēs     Ordinal: tertius     Adverbial: ter     Proportional: triplus     Multiplier: triplex     Distributive: ternus, trīnus     Collective: terniō     Fractional: triēns

Alternative forms

• tercius

Etymology

Etymology tree

Proto-Indo-European *tréyes

Proto-Indo-European *tri-

Proto-Indo-European *-tós

Proto-Indo-European *tritós

Proto-Italic *tritios

Latin tertius

From Proto-Italic *tritios, from Proto-Indo-European *tr̥tyós ~ *tritós, ordinal form of *tréyes. Akin to Ancient Greek τρίτος (trítos), Proto-Germanic *þridjô and Proto-Slavic *tretь.

Pronunciation

• (Classical Latin) IPA^(key): [ˈtɛr.ti.ʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈtɛr.t͡si.us]

Numeral

tertius (feminine tertia, neuter tertium); first/second-declension numeral

1. third
   • For quotations using this term, see Citations:tertius.

Usage notes

• In a poetic sense it is used for the Roman "Third World", that is the "Underworld", of Pluto

Declension

First/second-declension adjective.

	singular				plural
	masculine	feminine	neuter		masculine	feminine	neuter
nominative	tertius	tertia	tertium		tertiī	tertiae	tertia
genitive	tertiī	tertiae	tertiī		tertiōrum	tertiārum	tertiōrum
dative	tertiō	tertiae	tertiō		tertiīs
accusative	tertium	tertiam	tertium		tertiōs	tertiās	tertia
ablative	tertiō	tertiā	tertiō		tertiīs
vocative	tertie	tertia	tertium		tertiī	tertiae	tertia

Derived terms

• sēstertius
• tertiārius
• tertiī decennālēs
• tertiō
• tertium

Descendants

• Emilian: têrz
• → English: tertial
• Old French: tiers, terce, tierz, tierce
  • French: tiers
• Italian: terzo
  • → Romanian: terț
• Ladin: terz
• Old Galician-Portuguese: terço
  • Galician: terzo
  • Portuguese: terço, tércio
    • → Konkani: तेर्स / ತೆರ್ಸ್ / ters (ters)
• Piedmontese: ters
• Romanian: terțiu
• Sicilian: terzu, tezzu
• Spanish: tercio
• Venetan: terso, terço

References

• “tertius”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “tertius”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "tertius", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “tertius”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• Carl Meißner; Henry William Auden (1894), Latin Phrase-Book‎^[1], London: Macmillan and Co.
  • it is the third hour (= 9 A.M.: tertia hora est
    
  • I am in my thirteenth year: tertium decimum annum ago
    
  • to be middle-aged (i.e. between thirty and forty): tertiam iam aetatem videre
    
  • to admit another into the circle of one's intimates: aliquem (tertium) ad (in) amicitiam ascribere
    
  • the actor who plays the leading part: actor primarum (secundarum, tertiarum) partium
    
  • consul for the second, third time: iterum, tertium consul
    
• tertius in *The Dictionary of Medieval Latin from British Sources* ed. R. E. Latham, D. R. Howlett, & R. K. Ashdowne (London: British Academy, 1975-2013)