punishment vs repayment

punishment

noun
  • A suffering by pain or loss imposed as retribution 

  • A penalty to punish wrongdoing, especially for crime. 

  • Any harsh treatment or experience; rough handling. 

  • The act or process of punishing, imposing and/or applying a sanction. 

repayment

noun
  • The act of revenge, an act of revenge. 

  • The act of repaying. 

  • The money or other item that is repaid. 

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