believer vs materialist

believer

noun
  • A person who believes; especially regarding religion. 

materialist

noun
  • Someone who is materialistic, concerned only with material possessions. 

  • A follower or proponent of philosophical materialism. 

adj
  • Having features typical of philosophical materialism. 

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