'Sabbat' definitions:

Definition of 'sabbat'

(from WordNet)
noun
A midnight meeting of witches to practice witchcraft and sorcery; in the Middle Ages it was supposed to be a demonic orgy [syn: sabbat, witches' Sabbath]

Definition of 'Sabbat'

From: GCIDE
  • Sabbat \Sab"bat\, n. [See Sabbath.] In mediaeval demonology, the nocturnal assembly in which demons and sorcerers were thought to celebrate their orgies. [1913 Webster]