banish vs exile

banish

verb
  • To send someone away and forbid that person from returning. 

  • To expel, especially from the mind. 

exile

verb
  • To send (someone or something) into exile. 

noun
  • The state of being banished from one's home or country. 

  • Someone who is banished from their home or country. 

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