anger vs ax to grind

anger

noun
  • A strong feeling of displeasure, hostility or antagonism towards someone or something, usually combined with an urge to harm, often stemming from perceived provocation, hurt, or threat. 

verb
  • To become angry. 

  • To cause such a feeling of antagonism in. 

ax to grind

noun
  • A grudge or grievance, with implications of confrontation. 

  • A proposition or point of view to advocate, especially motivated by self-interest. 

How often have the words anger and ax to grind occurred in a corpus of books? (source: Google Ngram Viewer )