Artificial intelligent assistant

obsessor

obˈsessor Obs. rare—1.
  [a. L. obsessor, agent-n. from obsidēre to obsess.]
  A haunting or familiar spirit.

1652 Gaule Magastrom. 179 How many magicians,..have had their..obsessors, their consiliaries, and auxiliaries.

Oxford English Dictionary

yu7NTAkq2jTfdvEzudIdQgChiKuccveC e5ccd8f1f5edab6894c1a5354dc088e8