annoyance vs placation

annoyance

noun
  • The psychological state of being annoyed or irritated. 

  • That which annoys. 

  • An act or instance of annoying. 

placation

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

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