Artificial intelligent assistant

excruciator

excruciator rare.
  (ɛkˈskruːʃɪeɪtə(r))
  [ad. L. excruciātor, agent-n. f. excruciāre to excruciate.]
  One who excruciates; a tormentor.

1864 Realm 20 Apr. 8 Signor Sivori..turned round upon his excruciators, and stamped most furiously.

Oxford English Dictionary

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