disqualify vs exclude

disqualify

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

  • To make ineligible for something. 

exclude

verb
  • To omit from consideration. 

  • To expel; to put out. 

  • To bar (someone or something) from entering; to keep out. 

  • To refuse to accept (evidence) as valid. 

  • To eliminate from diagnostic consideration. 

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