affront vs aggravating circumstance

affront

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

verb
  • To meet defiantly; to confront. 

  • To insult intentionally, especially openly. 

aggravating circumstance

noun
  • A factor that increases the culpability or deleterious consequences of a wrongful act. 

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