Artificial intelligent assistant

potestal

poˈtestal, a. rare.
  [irreg. f. next + -al1.]
  Of or pertaining to potestas: see next, 3.

1880 Muirhead Gaius iv. §78 Of opinion that my action is only suspended while the child or slave is in my potestas, because I cannot proceed against myself, but that it revives on the potestal relationship coming to an end.

Oxford English Dictionary

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