spunk vs steadfastness

spunk

noun
  • Courage; spirit; mettle; determination. 

  • An attractive person (normally male). 

  • Touchwood; tinder. 

  • Semen. 

verb
  • To ejaculate. 

  • To waste (money etc.). 

steadfastness

noun
  • Loyalty in the face of trouble and difficulty. 

  • Steadfast resolution. 

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