tolerance vs toleration

tolerance

noun
  • The ability or practice of tolerating; an acceptance of or patience with the beliefs, opinions or practices of others; a lack of bigotry. 

  • The ability of the body to accept a tissue graft without rejection. 

  • The variation or deviation from a standard, especially the maximum permitted variation in an engineering measurement. 

  • The ability of the body (or other organism) to resist the action of a poison, to cope with a dangerous drug or to survive infection by an organism. 

toleration

noun
  • The allowance of something not explicitly approved; tolerance, forbearance. 

  • Specifically, the allowance by a government (or other ruling power) of the exercise of religion beyond the state established faith. 

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