Artificial intelligent assistant

passed-master

passed-master
  One who has passed as a master; a qualified or accomplished master: cf. to pass master, pass v. 17, and see past-master.

1563–7 Buchanan Reform. St. Andros Wks. (1892) 13 Ane of profession of medecine passit maister, and ane regent in humanite. 1882 H. C. Merivale Faucit of B. i. vi, Faucit was a passed master as a guide to the classics. 1894 Athenæum 24 Mar. 383/1 We praise ourselves, rather than such a passed-master of the art, by saying ‘ditto’ to his axiom. Mod. A passed master in the art of swindling.

Oxford English Dictionary

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