exculpation vs justification

exculpation

noun
  • That which exculpates; an excuse. 

  • The act of exculpating from alleged fault or crime. 

justification

noun
  • A reason, explanation, or excuse which someone believes provides convincing, morally acceptable support for behavior or for a belief or occurrence. 

  • The forgiveness of sin. 

  • The alignment of text to the left margin (left justification), the right margin (right justification), or both margins (full justification). 

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