innocence vs pureness

innocence

noun
  • Absence of responsibility for a crime, tort, etc. 

  • Lack of ability or intention to harm or damage. 

  • Lack of understanding about sensitive subjects such as sexuality and crime. 

pureness

noun
  • The quality of being pure; purity 

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