disapprobation vs exculpation

disapprobation

noun
  • An act or expression of condemnation or disapproval, especially on moral grounds. 

exculpation

noun
  • The act of exculpating from alleged fault or crime. 

  • That which exculpates; an excuse. 

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