companionship vs solitariness

companionship

noun
  • The state of having or being a companion. 

  • The state of being a journeyman. 

  • An organized group of people. 

solitariness

noun
  • The state or quality of being solitary. 

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