Artificial intelligent assistant

bewitcher

beˈwitcher
  [f. bewitch + -er1.]
  One who bewitches or charms.

1545 Joye Exp. Dan. v. (R.) Oure..subtyle sorcerers..and bewitchers. 1611 A. Stafford Niobe 117 (T.) These bewitchers of beautie.

Oxford English Dictionary

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