An 'esbat' is a ritual observance of the
full moon within
Wicca and other Wiccan-influenced forms of
Neopaganism. Some groups extend these celebrations to include the
dark moon, or even the first and last quarters. Traditionally, the
Sabbats are times of celebration, while magical work is done at the esbats.
There are thirteen
canonical full moons each year, although some years will have only twelve, because a synodic lunar month is more than twenty-eight days long (actually about 29½ days). A "
blue moon" is popularly defined as the second full moon in a calendar month, although some define it as the second full moon while the sun is in one sign of the
Zodiac. The original meaning of blue moon was the third full moon in a season when there were four Full Moons in that season.
In ''The Witches' Goddess'', Janet and
Stewart Farrar note that the
Babylonians considered the
new moon to be the time when the
Goddess was
menstruating, and it was bad luck to do work on that day. In
Jewish culture, this is the first day of the month, called
Rosh Chodesh, and is still observed by some as a holiday for women.
The term 'esbat' is probably a recent adoption, dating to the writings of
Margaret Murray. It is derived from French ''esbat'' (modern ''ébat''), meaning roughly "frolic, romp", with some sexual connotations. This term was used during the
European witch trials to describe the supposed behaviour of
witches engaging in
Devil worship, and it has been claimed that Murray was misled by the word's coincidental resemblance to the word sabbat.
[1]
Notes
1. Margaret Murray, 1933, ''The God of the Witches'', Sampson Law, Marston & Co., Ltd.