achieve vs execute

achieve

verb
  • To carry out successfully; to accomplish. 

  • Show all the spoils by valiant kings achieved. 

  • To succeed in something, now especially in academic performance. 

  • To obtain (a material thing). 

  • To obtain, or gain (a desired result, objective etc.), as the result of exertion; to succeed in gaining; to win. 

execute

verb
  • To carry out; to put into effect. 

  • To run, usually successfully. 

  • Coordinate term: murder 

  • To perform. 

  • To kill, especially as punishment for a capital crime. 

  • To carry out, to perform an act; to put into effect or cause to become legally binding or valid (as a contract) by so doing. 

  • To start, launch or run 

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