Artificial intelligent assistant

devotist

deˈvotist Obs.
  [f. devote a. + -ist: cf. devotee.]
  A devotee.

1641 J. Johnson Acad. Love 85 All such Devotists we enlist in the Hall of Musicke. 1675 Ogilby Brit. 52 Shaftsbury..here King Edward 2d..was Interr'd..his Shrine afterwards was so visited by Devotists that the Town for a time bore his Name.

Oxford English Dictionary

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