disqualify vs earn

disqualify

verb
  • To exclude from consideration by the explicit revocation of a previous qualification. 

  • To make ineligible for something. 

earn

verb
  • To cause (someone) to receive payment or reward. 

  • To achieve by being worthy of. 

  • To receive payment for work. 

  • To gain (success, reward, recognition) through applied effort or work. 

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