Artificial intelligent assistant

beneficious

beneˈficious, a. Obs.
  [f. L. benefici-um + -ous: cf. officious.]
  = beneficent.

1535 Fisher Wks. 377 So liberall and beneficious. 1610 Holland Camden's Brit. 362 (D.) The Beauchamps..acknowledge Haber de Burgo..beneficious to them.

Oxford English Dictionary

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