Artificial intelligent assistant

incantator

incantator rare.
  (ˈɪnkænˌteɪtə(r))
  [a. L. incantātor, agent-noun from incantāre: see incant.]
  One who uses incantation; an enchanter.

1447 O. Bokenham Seyntys (Roxb.) 85 Julyan anoon to the incantatour Thy craft he seyde is not worth a flykke. 1656 Blount Glossogr., Incantator, a charmer or enchanter. 1885 A. Stewart Ben Nevis & Glencoe I. 8 We have to beg the incantator not to direct the rats to the Lochaber shore.

Oxford English Dictionary

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