accuse vs disculpate

accuse

verb
  • to find fault with, blame, censure 

  • to make an accusation against someone 

  • to charge with having committed a crime or offence 

disculpate

verb
  • To free from blame or the imputation of a fault; to exonerate. 

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