busk vs fetter

busk

noun
  • A strip of metal, whalebone, wood, or other material, worn in the front of a corset to stiffen it. 

  • A corset. 

verb
  • To solicit money by entertaining the public in the street or in public transport. 

  • To tack, cruise about. 

fetter

noun
  • A chain or similar object used to bind a person or animal – often by its legs (usually in plural). 

  • Anything that restricts or restrains. 

verb
  • To restrain or impede; to hamper. 

  • To shackle or bind up with fetters. 

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