quinquennium

noun

quin·quen·ni·um kwin-ˈkwe-nē-əm

kwiŋ-

plural quinquenniums or quinquennia kwin-ˈkwe-nē-ə

kwiŋ-

: a period of five years

Word History

Etymology

Latin, from quinque five + annus year — more at five, annual

First Known Use

1621, in the meaning defined above

Time Traveler

The first known use of quinquennium was in 1621

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Browse Nearby Words

quinquennial

quinquennium

quinquereme

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Cite this Entry

Style

“Quinquennium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quinquennium. Accessed 22 Jul. 2025.

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