avoid vs enroll

avoid

verb
  • To try not to do something or to have something happen 

  • To stay out of the way of (something harmful). 

  • to keep away from; to keep clear of; to stay away from 

  • To try not to meet or communicate with (a person); to shun 

  • To make void, to annul; to refute (especially a contract). 

  • To defeat or evade; to invalidate. 

enroll

verb
  • To enlist oneself (in something) or become a member (of something) 

  • To enter (a name, etc.) in a register, roll or list 

  • To enlist (someone) or make (someone) a member of 

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