undevil

verb

1. (archaic, transitive)To free from possession by a devil or evil spirit; to exorcise or to make less devilish.

   “The boy having gotten a habit of counterfeiting […] would not be undevilled by all their exorcisms.”

   “[...] for the following day, the flowers were watered a quarter of an hour earlier than usual, and the bulfinch was allowed to perch on her finger and chirruped to, with a degree of innocent tenderness that would have undeviled Mephistophiles.”

   “It is hardly more wondrous to undevil a man than it is to restore reason, at a word, to the brain-distracted, the ravening, frenzied bedlamite — the re-enthronement of a mind lost in the darkness of shattered intellect.”