expatriate vs throw off

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. 

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

  • One who lives outside one's own country. 

adj
  • Living outside of one's own country. 

throw off

verb
  • To expel, reject, or renounce. 

  • To give forth in an unpremeditated manner. 

  • Of a horse, to eject its rider. 

  • To introduce errors or inaccuracies; to skew. 

  • To confuse; especially, to lose a pursuer. 

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