Artificial intelligent assistant

pseudographer

pseuˈdographer rare—1.
  [f. as prec. + -er: see -grapher.]
  A false writer; in quot. one who counterfeits another's handwriting, a forger.

1818 Edin. Rev. Sept. 438 M. Villette, a pseudo-grapher of the greatest eminence, counterfeited the handwriting and signature of Marie Antionette.

Oxford English Dictionary

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