Artificial intelligent assistant

atoner

atoner
  (əˈtəʊnə(r))
  [f. atone v. + -er1.]
  One who atones; a reconciler; an expiator.

1719 D'Urfey Pills (1872) I. 108 Oh Joy too fierce to be exprest, Thou sweet atoner of Life's greatest Pain. 1860 Maurice Lect. Apoc. v. 95 The Lamb that was slain..the perfect Atoner of man with the Father of Light. 1881 W. Nicoll The Saviour xxiii. 378 The atoner for souls must be sinless.

Oxford English Dictionary

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