moderation vs placation

moderation

noun
  • An instance of moderating: bringing something away from extremes, especially in a beneficial way 

  • The state or quality of being moderate; avoidance of extremes 

  • The process of moderating a discussion 

placation

noun
  • A process or act of placating; appeasement or an expression of appeasement. 

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