callus vs shock

callus

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

  • 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. 

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

verb
  • To form such hardened tissue. 

shock

noun
  • An arrangement of sheaves for drying; a stook. 

  • A state of distress following a mental or emotional disturbance. 

  • Electric shock, a sudden burst of electrical energy hitting a person or animal. 

  • Circulatory shock, a medical emergency characterized by the inability of the circulatory system to supply enough oxygen to meet tissue requirements. 

  • A shock absorber (typically in the suspension of a vehicle). 

  • A chemical added to a swimming pool to moderate the chlorine levels. 

  • A sudden or violent mental or emotional disturbance. 

  • A sudden, heavy impact. 

  • A tuft or bunch of something, such as hair or grass. 

  • Something so surprising that it is stunning. 

  • A discontinuity arising in the solution of a partial differential equation. 

  • A shock wave. 

adj
  • Causing intense surprise, horror, etc.; unexpected and shocking. 

verb
  • To give an electric shock to. 

  • To subject to a shock wave or violent impact. 

  • To cause to be emotionally shocked; to cause (someone) to feel surprised and upset. 

  • To add a chemical to (a swimming pool) to moderate the chlorine levels. 

  • To collect, or make up, into a shock or shocks; to stook. 

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