Artificial intelligent assistant

confutant

conˈfutant Obs.
  [ad. L. confūtānt-em, pr. pple. of confūtāre to confute: see -ant.]
  One who confutes; a confuter.

1642 Milton Apol. Smect. i, That the confutant may also know. Ibid. vi, Which hath brought this confutant into his pedantic kingdom of Cornucopia.

Oxford English Dictionary

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