forbearance vs leniency

forbearance

noun
  • Patient self-control; restraint and tolerance under provocation. 

  • A refraining from the enforcement of something (as a debt, right, or obligation) that is due. 

leniency

noun
  • An act of being lenient. 

  • The quality of mercy or forgiveness, especially in the assignment of punishment as in a court case. 

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