| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| epact |
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| SYLLABICATION: | e·pact |
| PRONUNCIATION: |    p kt |
| NOUN: | The period of time necessary to bring the solar calendar into harmony with the lunar calendar. | | ETYMOLOGY: | French épacte, from Late Latin epacta, from Greek epakt (hmera), intercalary (day), feminine of epaktos, brought in, inserted, from epagein, to bring in, introduce : ep-, epi-, epi- + agein, to lead; see ag- in Appendix I.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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