In old English law. A plot or compact made by persons combining by oath to do any public harm. Cowell. The offense of having conference or commerce with evil spirits, in order to discover some secret, or effect some purpose. Id. Classed by Blackstone with witchcraft, enchantment, and sorcery, but distinguished from each of these by other writers. 4 Bl. Comm. 60; Cowell. Cooper v. Livingston, 19 Fla. 693