spunk vs valiancy

spunk

verb
  • To ejaculate. 

  • To waste (money etc.). 

noun
  • An attractive person (normally male). 

  • Touchwood; tinder. 

  • Courage; spirit; mettle; determination. 

  • Semen. 

valiancy

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