altruism vs ill will

altruism

noun
  • Action or behaviour that benefits another or others at some cost to the performer. 

  • Regard for others, both natural and moral without regard for oneself; devotion to the interests of others; brotherly kindness. 

ill will

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

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