courtesy vs mischievousness

courtesy

adj
  • Supplied free of charge. 

  • Given or done as a polite gesture. 

noun
  • 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. 

  • Polite behavior. 

  • Willingness or generosity in providing something needed. 

mischievousness

noun
  • The characteristic of being mischievous; the tendency to make mischief. 

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