bitterness vs warpath

bitterness

noun
  • The quality of eliciting a bitter, humiliating or harsh feeling. 

  • The quality of having a bitter taste. 

  • Harsh cold. 

  • The quality of feeling bitter; acrimony, resentment; the quality of exhibiting such feelings. 

warpath

noun
  • A course of action that leads to battle or hostility. 

  • The route taken by a party of Native Americans going on a warlike expedition. 

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