callus vs scotch

callus

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

  • 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. 

verb
  • To form such hardened tissue. 

scotch

noun
  • A surface cut or abrasion. 

  • A line drawn on the ground, as one used in playing hopscotch. 

  • Scotch tape 

  • A block for a wheel or other round object; a chock, wedge, prop, or other support, to prevent slipping. 

verb
  • To debunk or discredit an idea or rumor. 

  • To beat yarn in order to break up slugs and align the threads. 

  • To rape. 

  • To prevent (something) from being successful. 

  • To dress (stone) with a pick or pointed instrument. 

  • To block a wheel or other round object. 

  • To cut or score; to wound superficially. 

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