sabbat

noun (sometimes lowercase) Demonology.

1. (in the 14th–16th centuries) a secret rendezvous of witches and sorcerers for worshiping the Devil, characterized by orgiastic rites, dances, feasting, etc.

noun

1. another word for Sabbath (def. 4)

n.“witches’ sabbath,” 1650s, special application of the French form of sabbath.