emancipate vs enchain

emancipate

verb
  • 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 

  • To set free, as a minor from a parent 

adj
  • Freed; set at liberty. 

enchain

verb
  • To restrain with, or as if with, chains. 

  • To link together. 

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