Plural of biennium; multiple two-year periods or cycles, using English pluralization instead of Latin.
English plural form of 'biennium' using -s, rather than the Latin plural 'biennia', reflecting the gradual anglicization of Latin terms in modern English.
Language nerds debate whether to say 'biennia' or 'bienniums'—it's a generational divide where older scholars keep the Latin plural while younger writers anglicize it, making this tiny word a marker of educational style.
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