expatriate vs permit

expatriate

verb
  • To banish; to drive or force (a person) from his own country; to make an exile of. 

  • To withdraw from one’s native country. 

  • To renounce the rights and liabilities of citizenship where one is born and become a citizen of another country. 

adj
  • Living outside of one's own country. 

noun
  • One who has been banished from one's own country. 

  • One who lives outside one's own country. 

permit

verb
  • To allow (someone) to do something; to give permission to. 

  • To allow (something) to happen, to give permission for. 

  • To allow for, to make something possible. 

  • To allow, to admit (of). 

  • To grant formal authorization for (something). 

  • To attempt to obtain or succeed in obtaining formal authorization for (something). 

noun
  • A pompano of the species Trachinotus falcatus. 

  • An artifact or document rendering something allowed or legal. 

  • A learner's permit. 

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