grudge vs hostility

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). 

hostility

noun
  • The state of being hostile. 

  • A hostile action, especially a military action. See hostilities for specific plural definition. 

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