Artificial intelligent assistant

approvant

aˈpprovant Obs. rare.
  [a. OFr. aprovant, pr. pple. of aprover: see approve v.1 and -ant.]
  The party offering proof. Cf. approver1.

1577–87 Holinshed Chron. III. 1256/2 Sir William de Facknaham..on the one side approvant; and this sir John Sitsylt..on the other side defendant.

Oxford English Dictionary

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