accomplish vs attain

accomplish

verb
  • To complete, as time or distance. 

  • To finish successfully. 

  • to fill out a form. 

  • To execute fully; to fulfill; to complete successfully. 

attain

verb
  • To reach or come to, by progression or motion; to arrive at (a place, time, state, etc.). 

  • To gain (an object or desired result). 

  • To come or arrive, by motion, growth, bodily exertion, or efforts toward a place, object, state, etc. 

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