grudge vs ill will

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). 

ill will

noun
  • A spiteful or vengeful attitude; a grudge; dislike. 

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