Artificial intelligent assistant

deservient

deˈservient, ppl. a. Obs.
  [ad. L. dēservient-em, pr. pple. of dēservīre to serve zealously, etc.]
  Of service, helpful.

1578 Banister Hist. Man i. 22 Passages..deseruient to the transmitting of Sinewes. 1661 Sir H. Vane's Politicks 12 More sutable to the Time, then deservient to Necessity.

Oxford English Dictionary

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