almsgiver vs mainstay

almsgiver

noun
  • A small scale philanthropist or benefactor who consistently gives small amounts to those desperately in need. 

  • A giver of alms. 

mainstay

noun
  • Someone or something that can be depended on to make a regular contribution. 

  • A stabilising rope from the top of the mainmast to the bottom of the foremast. 

  • A chief support. 

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