altruism vs animosity

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. 

animosity

noun
  • Violent hatred leading to active opposition; active enmity; energetic dislike. 

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