aggression vs propitiation

aggression

noun
  • Hostile or destructive behavior or actions. 

  • The practice or habit of launching attacks. 

  • The act of initiating hostilities or invasion. 

propitiation

noun
  • The death of Christ as a basis for the forgiveness of sin. 

  • The act of propitiating; placation, atonement, similar to expiation but with the added concept of appeasement of anger. 

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