Artificial intelligent assistant

decisor

deˈcisor, -er Obs.
  [a. med.L. dēcīsor, agent-n. from dēcīdĕre to decide.]
  One who decides causes or controversies: a decider, arbiter.

1563 Foxe A. & M. 68 b, Thys King [Hen. II], to whom other Princes dyd so resort, as to their arbitrer and deciser. 1564 Haward Eutropius i. 9 Two whome they called Tribuni plebis..to be peculier decisers and determiners of their causes. 1888 B. Pick in Libr. Mag. Mar. 245 They were called Saboraim, ‘Decisors’, ‘Opinionists’.

Oxford English Dictionary

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