Artificial intelligent assistant

precedentary

preceˈdentary, a. rare—1.
  [f. as prec. + -ary1.]
  Forming a precedent: = precedential 1.

1887 Blackw. Mag. Sept. 396 Such a precedentary act as Lord Palmerston's despatch of the British fleet to the Dardanelles.

Oxford English Dictionary

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