octennium

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noun

An eight-year period.

Similar
octaeterisoctennial
OriginLate Latin octennium →
Scrabble 13
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Meanings

nounoctennium (plural octenniums or octennia)

plural octenniums · plural octennia

  1. rareAn eight-year period.

    Synonyms: octaeteris, octennial

Synonyms & antonyms

nounAn eight-year period.

Similar
octaeterisoctennial
Also see
octaeteris

Origin

  1. Late Latinoctennium
  2. Englishoctennium

From Late Latin octennium, from octennis (“8-year”) + -ium (suffix forming abstract nouns).

More words from Late Latin

Full word history & related roots →

Rhymes & wordplay

Anagrams

emunction
Cite this entry
APA

octennium. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/octennium

MLA

“octennium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/octennium. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “octennium,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/octennium.

Source: octennium on Wiktionary, CC BY-SA 4.0.