a convocation of witches.
Origin of esbat
1965–70; apparently a contemporary borrowing of Old French esbat amusement, diversion (French ébat), derivative of esbattre frolic, equivalent to es- ex-1 + battre < Latin battuere pound, beat; compare obsolete English esbatement amusement
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for esbat
The business carried on at the Esbat was usually the practice of magic for the benefit of a client or for the harming of an enemy.
Though there was no fixed day for the Esbat, it seems probable that one day in the week was observed in each locality.