intrepid vs spookish

intrepid

adj
  • Fearless; bold; brave. 

spookish

adj
  • Frightening or unnerving in the manner of something eerie or supernatural; spooky. 

  • Easily startled, frightened, or unnerved. 

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