fulfill vs shirk

fulfill

verb
  • To obey, follow, comply with (a rule, requirement etc.). 

  • To emotionally or artistically satisfy; to develop one's gifts to the fullest. 

  • To package, distribute, or ship goods. 

  • To satisfy, carry out, bring to completion (an obligation, a requirement, etc.). 

shirk

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

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

  • 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 fulfill and shirk occurred in a corpus of books? (source: Google Ngram Viewer )