courtesy vs niceness

courtesy

noun
  • Polite behavior. 

  • A curtsey. 

  • The life interest that the surviving husband has in the real or heritable estate of his wife. 

  • A polite gesture or remark, especially as opposed to an obligation or standard practice. 

  • Consent or agreement in spite of fact; indulgence. 

  • Willingness or generosity in providing something needed. 

adj
  • Supplied free of charge. 

  • Given or done as a polite gesture. 

niceness

noun
  • Pleasantness, especially of behaviour or personality; agreeableness. 

  • A value determining how much processor time to concede to a running process. (See also nice (verb), renice.) 

  • Effeminacy; indulgence in soft living or luxuriousness. 

  • Fastidiousness; fine sensitivity. 

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