antagonism vs grudge

antagonism

noun
  • A strong natural dislike or hatred; antipathy. 

grudge

noun
  • Deep-seated and/or long-term animosity or ill will about something or someone, especially due to a past misdeed or mistreatment. 

verb
  • To be unwilling to give or allow (someone something). 

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