expiation

noun2

1. •
   An act of atonement for a sin or wrongdoing.

   • And see far off below you, where the gulf is fixed, / Your persecutors, in timeless torment, / Parched passion, beyond expiation. — 1935
2. •
   (no longer used) The act of expiating or stripping off.

   • expiation of his immanities fore. — 1595