biennium.
a period of two years, biennium
Meaning & usage
a period of two years, biennium
Where this word comes from
Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Italic *dwi- Latin bi- Proto-Indo-European *h₂et- Proto-Indo-European *-nós Proto-Indo-European *h₂etnós Proto-Italic *atnos? Latin annus Proto-Indo-European *-is Proto-Indo-European *-h₂ Proto-Indo-European *-ih₂der.? Proto-Italic *-is Latin -is Latin biennis Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -iusnom. Latin -ium Latin biennium Synchronically, from biennis + -ium (suffix forming abstract nouns).
genitive masculine/feminine/neuter plural of biennis
Where this word comes from
See the etymology of the corresponding lemma form.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.