feud vs rapprochement

feud

noun
  • A state of long-standing mutual hostility. 

  • An estate granted to a vassal by a feudal lord in exchange for service. 

  • A staged rivalry between wrestlers. 

verb
  • To carry on a feud. 

rapprochement

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

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