befriend vs excommunicate

befriend

verb
  • To favor. 

  • To become a friend of, to make friends with. 

excommunicate

noun
  • An excommunicated person. 

adj
  • Excommunicated. 

verb
  • To officially exclude someone from membership of a church or religious community. 

  • To exclude from any other group; to banish. 

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