triennumDictionary entriestriennis, triennis, trienne:Adjective · 3rd declensionFrequency:Very RareDictionary:Lewis & ShortAge:Later= three year old;Entry →gen. pl. (all)trienne, triennis:Neuter · Noun · 3rd declensionFrequency:Lesser= triennial festival (pl.);Entry →gen. pl.ExamplesLoading examples…