cockiness vs temerity

cockiness

noun
  • The quality of being cocky 

temerity

noun
  • An act or case of reckless boldness. 

  • Reckless boldness; foolish bravery. 

  • Effrontery; impudence. 

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