rapprochement vs reconcilement

rapprochement

noun
  • The reestablishment of cordial relations, particularly between two countries; a reconciliation. 

reconcilement

noun
  • The fact of being restored to cordial relations with each other; settling differences, making peace; reconciliation. 

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