Artificial intelligent assistant

guidant

ˈguidant Obs. rare.
  Also 5 gydant.
  [f. guide v. + -ant.]
  a. One who guides. b. Guidance, guiding.

1495 Act 11 Hen. VII, c. 64 Preamble, The same persones..were adherentis assistencis..gydantis. 1691 Wood Ath. Oxon. II. 557 To persue a success in villany and rebellion was to follow the guidant of providential dispensations.

Oxford English Dictionary

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