Artificial intelligent assistant

sharpener

sharpener
  (ˈʃɑːp(ə)nə(r))
  [f. sharpen v. + -er1.]
  One who or something which sharpens.

1640 Bp. Reynolds Passions viii. 58 They are the sharpners and..the Whetstones of Vertue. 1807 W. Irving Salmag. xvi. (1824) 289 That marvellous sharpener of the wits, a salt-water voyage. 1838 T. Mitchell Clouds of Aristoph. 193 The water-bearers throw the guilt upon the sharpener of the axe and knife. 1867 Mill Inaug. Addr. St. Andrews 66 There never was any sharpener of the intellectual faculties superior to the Berkeleian controversy. 1876 Goode Classif. Collect. Anim. Resources U.S. 27 Arrow-head sharpeners.

Oxford English Dictionary

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