Artificial intelligent assistant

extimate

ˈextimate, a. Obs. rare.
  [f. L. extim-us, superl. of exter outside: on the analogy of ultimate.]
  Outmost, uttermost.

1659 H. More Immort. Soul (1662) 178 Personal figuration in the extimate parts..that represent the Body, Face, and Vestments, etc. 1672 Brief Reply 119 The supreme or extimate Heaven is in no place.

Oxford English Dictionary

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