bread vs callus

bread

verb
  • To make broad; spread. 

  • To coat with breadcrumbs. 

  • To form in meshes; net. 

noun
  • Money. 

  • Food; sustenance; support of life, in general. 

  • A piece of embroidery; a braid. 

  • Any variety of bread. 

  • A foodstuff made by baking dough made from cereals. 

callus

verb
  • To form such hardened tissue. 

noun
  • A shining area on the frons of many species of Tabanomorpha (horse flies and relatives). 

  • The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece. 

  • The new formation over the end of a cutting, before it puts out rootlets. 

  • A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use. 

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