\ ˈē-ˌpakt How to pronounce epact (audio) , ˈe- How to pronounce epact (audio) \

Definition of epact

: a period added to harmonize the lunar with the solar calendar

First Known Use of epact

1588, in the meaning defined above

History and Etymology for epact

Middle French epacte, from Late Latin epacta, from Greek epaktē, from epagein to bring in, intercalate, from epi- + agein to drive — more at agent

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The first known use of epact was in 1588

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Cite this Entry

“Epact.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epact. Accessed 22 Sep. 2020.

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Britannica.com: Encyclopedia article about epact

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