impertinence vs sass

impertinence

noun
  • The fact or character of being out of place; inappropriateness. 

  • Insolence; impudence. 

  • Lack of pertinence; irrelevance. 

  • An instance of this; a moment of being impertinent. 

sass

noun
  • Backtalk, cheek, sarcasm. 

verb
  • To talk, to talk back. 

  • To speak insolently to. 

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