justification vs legitimateness

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). 

legitimateness

noun
  • The quality of being legitimate. 

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