Artificial intelligent assistant

co-supreme

co-supreme Obs.
  [f. co- 3 + supreme.]
  One who holds a position of supremacy in conjunction with another; a joint overruler. (Cf. consupreme a.)

1599 Pass. Pilgr. xviii, To the phœnix and the doue, Co⁓supremes and stars of love. 1619 H. Hutton Follies Anat. (Percy Soc.) 48 These co-supremes, which ouer-rule the fate, Enthronize him in Saturn's regall state.

Oxford English Dictionary

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