benevolence vs widow's mite

benevolence

noun
  • An altruistic gift or act. 

  • Charitable kindness. 

  • A kind of forced loan or contribution levied by kings without legal authority, first so called under Edward IV in 1473. 

  • Disposition to do good. 

widow's mite

noun
  • A very small gift or donation which, however, represents a great sacrifice on the part of the giver. 

  • The lepton coin. 

How often have the words benevolence and widow's mite occurred in a corpus of books? (source: Google Ngram Viewer )