familiarity vs freshness

familiarity

noun
  • An instance of familiar behaviour. 

  • Undue intimacy; inappropriate informality, impertinence. 

  • Close or habitual acquaintance with someone or something; understanding or recognition acquired from experience. 

  • The state of being extremely friendly; intimacy. 

freshness

noun
  • The state or quality of being fresh. 

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