Artificial intelligent assistant

unword

unˈword, v. Obs. rare.
  [un-2 4.]
  trans. To deprive of words; to make speechless.

a 1625 Fletcher Nice Valour ii. i, You should have found my thanks paid in a smile If I had fell unworded. 1654 Gayton Pleas. Notes iv. ix. 230 Uncardinall'd, Unlorded, Outed of all his hopes, but not Unworded; He..Curses Knight-Errants.

Oxford English Dictionary

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