boldness vs cojones

boldness

noun
  • The state of being bold; courage. 

  • The relative weight of a font; the thickness of its strokes. 

  • presumptuousness 

cojones

noun
  • Synonym of balls, the male genitalia and courage, masculinity, &c. 

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