Artificial intelligent assistant

disnull

disˈnull, v. Obs. rare.
  In 6 dys-.
  [f. dis- 5 + L. null-us none, null: cf. annul. A variant of denull, disannul.]
  trans. To bring to nothing, do away with, destroy.

1509 Hawes Past. Pleas. viii. (1845) 31 To dysnull vyce and the vycious to blame. Ibid. xliv. 216 Dysnullynge the sectes of false idolatry.

Oxford English Dictionary

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