emancipate vs naturalize

emancipate

verb
  • To set free, as a minor from a parent 

  • To set free from slavery or bondage; to give freedom to; to manumit 

  • To free from any controlling influence, especially from anything which exerts undue or evil influence 

adj
  • Freed; set at liberty. 

naturalize

verb
  • To grant citizenship to someone not born a citizen. 

  • To make (a word) a natural part of the language, using the native homologue of each phoneme (and often for each morpheme) of the imported word (e.g., native inflections). 

  • To study nature. 

  • To limit explanations of a phenomenon to naturalistic ones and exclude supernatural ones. 

  • To acclimatize an animal or plant. 

  • To make natural 

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