almsgiving vs altruism

almsgiving

noun
  • The act of voluntarily giving alms, of making donations to the poor, charity. 

altruism

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

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

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