Artificial intelligent assistant

impugnator

impugˈnator Obs. rare—1.
  [ad. late L. impugnātor, agent-n. f. impugnāre to impugn; cf. F. (obs.) impugnateur.]
  = next.

1678 Gale Crt. Gentiles III. 123 The Iesuites themselves, who are his most puissant Impugnators, give him a more candid and favorable treatment.

Oxford English Dictionary

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