achieve vs acquire

achieve

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

  • Show all the spoils by valiant kings achieved. 

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

  • To carry out successfully; to accomplish. 

  • To obtain (a material thing). 

acquire

verb
  • To gain, usually by one's own exertions; to get as one's own 

  • To sample signals and convert them into digital values. 

  • To contract. 

  • To get. 

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