companionship vs emptiness

companionship

noun
  • The state of having or being a companion. 

  • The state of being a journeyman. 

  • An organized group of people. 

emptiness

noun
  • The state or feeling of being empty. 

  • A void; a nothingness; something lacking existence. 

  • A nonexistence; a lack of existence. 

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