Artificial intelligent assistant

Tartareous

Tarˈtareous, a.2 Obs.
  [f. L. tartare-us (f. Tartarus) + -ous.]
  Of or pertaining to Tartarus; Tartarean, infernal, hellish, very wicked.

1619 Bainbridge Descr. Late Comet 37 Never was there more need of circumspection, then in this fæculent and tartareous age. [Here perh. a fig. use of prec.] 1667 Milton P.L. vii. 238 The Spirit of God..downward purg'd The black tartareous cold infernal dregs Adverse to life.

Oxford English Dictionary

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