Artificial intelligent assistant

ostentatory

oˈstentatory, a. Obs. rare—1.
  [ad. L. ostentātōri-us, f. ostentātor: see -ory. In OF. ostentatoire (16th c. in Godef.).]
  = ostentatious.

1657 G. Starkey Helmont's Vind. To Rdr., 'Tis no unlikely but some captious Antagonist may censure my Aphorisms as ostentatory.

Oxford English Dictionary

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