A person thought to be inhabited and controlled by a demon; a possessed person; (also) a person suffering from mental illness or madness (said to…

A person (supposedly) influenced by the Devil; a practitioner of or enthusiast for rituals involving the Devil or devils; a wicked person. rare.

A possessed person.

A possessed person or thing; esp. (with the and plural agreement) people possessed by a demon or spirit as a class; lunatics, demoniacs.

A person thought to be possessed by an evil spirit; spec. a person who believes this of himself or herself; a person affected with demonomania.

A person (supposedly) possessed by a devil or demon; a person suffering from diabolepsy (diabolepsy, n.). Cf. demoniac, n. 1.

one possessed or inspired by a deity.