1) Convocation of witches 2) Meeting of witches 
An esbat t is a coven meeting of other than one the Sabbats within Wicca and other Wiccan-influenced forms of contemporary Paganism. Janet and Stewart Farrar describe esbats as an opportunity for a `love feast, healing work, psychic training and all.` ==Etymology== The term esbat is derived from Old French s`esbattre (Modern French ébat), mean......
meeting of a witches' coven
Coven meeting that's not on a Sabbat. Often timed with the full or new moon, but not required. The word is found in a single witch-trial document involving a torture-induced confession. In Basque. It may have been a corruption of Sabbat. The modern usage is based on the writings of Margaret Murray. 
The Full and New Moon rituals of Witches. 
a convocation of witches.