epact
Pronunciation: /ˈēˌpakt
noun
[in singular]
1 The number of days by which the solar year differs from the lunar year.
1.1 The number of days into the moon’s phase cycle at the beginning of the solar (calendar) year.
Origin
mid 16th century (denoting the age of the moon in days at the beginning of the calendar year): from French épacte, via late Latin from Greek epaktai (hēmerai) 'intercalated (days)', from epagein 'bring in', from epi 'in addition' + agein 'bring'.
----------------
Sally reclined in the solarium. Even though it was December 21 and the winter solstice, she enjoyed the sun on her face. She was totally unaware of the epact offset of the moon's phase. It had no tiny impact on her relaxing time.
