Artificial intelligent assistant

subsidereal

subsiˈdereal, a. Obs. rare—1.
  [sub- 1 a.]
  Subcelestial, sublunary.

1636 in Ann. Dubrensia (1877) 57 This subsideriall rundle.

Oxford English Dictionary

yu7NTAkq2jTfdvEzudIdQgChiKuccveC bb8e902fea51f0838803e6327fbb9dac