affiliation vs estrangement

affiliation

noun
  • The relationship resulting from affiliating one thing with another. 

  • A club, society or umbrella organisation so formed, especially a trade union. 

  • The establishment of a child's paternity or maternity 

estrangement

noun
  • The state of being alien; foreign, non-native. 

  • The act of estranging; the act of alienating; alienation. 

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