bravery vs hardihood

bravery

noun
  • Being brave, courageousness. 

  • A brave act. 

  • Splendor, magnificence. 

hardihood

noun
  • Unyielding boldness and daring; firmness in doing something that exposes one to difficulty, danger, or calamity; intrepidness. 

  • Ability to withstand extreme conditions, hardiness. 

  • Excessive boldness; foolish daring; offensive assurance. 

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