propriety vs rascality

propriety

noun
  • The fact of possessing something; ownership. 

  • Suitability, fitness; the quality of being appropriate. 

  • Correctness in behaviour and morals; good manners, seemliness. 

rascality

noun
  • The two of them engaged in all kinds of rascality in college. 

  • Rascals collectively; the rabble, the masses. 

  • The behavior of a rascal; the quality of being a rascal. 

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