refugee vs shirk

refugee

verb
  • To convey (slaves) away from the advance of the federal forces. 

noun
  • A person seeking refuge due to a natural disaster, war, etc. 

  • A person who flees one place or institution for another. 

  • A person seeking refuge in a foreign country out of fear of political persecution or the prospect of such persecution in their home country, i.e., a person seeking political asylum. 

  • A person formally granted political or economic asylum by a country other than their home country. 

shirk

verb
  • To evade an obligation; to avoid the performance of duty, as by running away. 

  • To avoid, especially a duty, responsibility, etc.; to stay away from. 

  • To procure by petty fraud and trickery; to obtain by mean solicitation. 

noun
  • One who shirks, who avoids a duty or responsibility. 

  • The unforgivable sin of idolatry. 

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