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

Word History


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

First Known Use

1588, in the meaning defined above

Time Traveler
The first known use of epact was in 1588

Dictionary Entries Near epact

Cite this Entry

“Epact.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epact. Accessed 28 Nov. 2022.

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