Ecclesiastical) IPA(key): [biˈɛn.ni] biennī dative/ablative masculine/feminine/neuter singular of biennis <span class="searchmatch">bienniī</span> biennī n genitive singular of biennium...
abstract nouns), from bi- (“two”) + annus (“year”), q.v. biennium n (genitive <span class="searchmatch">bienniī</span> or biennī); second declension biennium Second-declension noun (neuter)...