triennis

From tri- (“three”) +‎ annus (“year”) +‎ -is (suffix forming compound adjectives)

• (Classical Latin) IPA^(key): [triˈɛn.nɪs]
• (modern Italianate Ecclesiastical) IPA^(key): [triˈɛn.nis]

triennis (neuter trienne); third-declension two-termination adjective (only attested post-classically)

1. three-year-old

   Synonyms: trīmus, triennālis

   • Vulgata—Genesis 15.9:

     Dixitque ad eum : Ego Dominus qui eduxi te de Ur Chaldæorum ut darem tibi terram istam, et possideres eam. At ille ait : Domine Deus, unde scire possum quod possessurus sim eam ? Et respondens Dominus : Sume, inquit, mihi vaccam triennem, et capram trimam, et arietem annorum trium, turturem quoque et columbam.

     (please add an English translation of this quotation)

2. of three years, lasting three years

   (Can we add an example for this sense?)

Third-declension two-termination adjective.

• “triennis”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “triennis”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.