A Dictionary of the Older Scottish Tongue (up to 1700)
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First published 1951 (DOST Vol. II).
This entry has not been updated since then but may contain minor corrections and revisions.
Epact, n. [e.m.E. (1552), F. epacte, L. epacta.] The excess of the solar over the lunar year. —1588 King Cat. I j.
Becaus this ordinarie cowrse of the epact, … is interrupted euerie hundereth ȝere
