bonded vs fettered

bonded

adj
  • Secured by bond. 

  • Joined securely, either with adhesive, heat process or pressure. 

fettered

adj
  • Restricted. 

  • Of the feet: bent backward and apparently unfit for walking. 

  • Bound by chains or shackles. 

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