Artificial intelligent assistant

incussion

inˈcussion Obs. rare.
  Also 7 erron. incusion.
  [ad. L. incussiōn-em, n. of action from incutĕre: see incuss v.]
  A striking or dashing against something; collision, impact.

1615 Crooke Body of Man 591 The better to resist outward injuries and violent incusions of the ayre. 1658 Phillips, Incussion, a violent shaking, or dashing against any thing. [In ed. 1706 marked Obs.]

Oxford English Dictionary

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