Artificial intelligent assistant

serviential

† serˈviential, a. Obs. rare—1.
  [f. servient a. + -ial.]
  Pertaining to service.

1897 F. W. Maitland Domesday Bk. 162 The relation between thegn and lord is no longer conceived as a menial, ‘serviential’ or ministerial relation.

Oxford English Dictionary

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