holder vs nonowner

holder

noun
  • A thing that holds. 

  • A person who temporarily or permanently possesses something. 

  • The defending champion. 

  • One who is employed in the hold of a vessel. 

nonowner

noun
  • One who is not an owner, especially in a business enterprise. 

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