owndom vs proprietorship

owndom

noun
  • Ownership; possession. 

  • A characteristic; quality; attribute; trait. 

  • Property. 

  • Personal belongings; possessions. 

  • Control of oneself; self-mastery. 

proprietorship

noun
  • The state of being a proprietor; ownership 

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