impunity vs remittal

impunity

noun
  • Freedom from punishment or retribution; security from any reprisal or injurious consequences of an action, behaviour etc. 

  • Exemption from punishment. 

remittal

noun
  • Anything remitted; remittance. 

How often have the words impunity and remittal occurred in a corpus of books? (source: Google Ngram Viewer )