peace offering vs peacemongering

peace offering

noun
  • An offering or concession made to an adversary in the hope of obtaining peace or reconciliation; an olive branch. 

  • A religious sacrifice. 

peacemongering

noun
  • Behaviour of a peacemonger; irrational pacifism. 

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