freely vs on purpose

freely

adj
  • Free; frank. 

  • Generous; noble; excellent; beautiful; lovely. 

adv
  • Without interference or restriction. 

  • Of one's own free will. 

  • In a free manner. 

on purpose

prep
  • By design, as opposed to by accident; intentionally; deliberately. 

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