affront vs propriety

affront

verb
  • To meet defiantly; to confront. 

  • To insult intentionally, especially openly. 

noun
  • An open or intentional offense, slight, or insult. 

propriety

noun
  • The fact of possessing something; ownership. 

  • Suitability, fitness; the quality of being appropriate. 

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

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