Artificial intelligent assistant

decessor

deˈcessor Obs.
  [a. L. dēcēssor one who retires, a retiring officer, in late L. (Augustine, etc.) ‘predecessor’, agent-n. from dēcēdĕre to depart, retire.]
  = predecessor.

1647 Jer. Taylor Lib. Proph. vii. 128 The Popes may deny Christ as well as their Cheife and Decessor Peter. 1651–3Serm. for year i. iv. 42 David..humbled himself for the sins of his Ancestors and Decessors.

Oxford English Dictionary

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