abuse vs callus

abuse

noun
  • Physical maltreatment; injury; cruel treatment. 

  • Improper treatment or usage; application to a wrong or bad purpose; an unjust, corrupt or wrongful practice or custom. 

  • Misuse; improper use; perversion. 

  • Coarse, insulting speech; abusive language; language that unjustly or angrily vilifies. 

  • Violation; defilement; rape; forcing of undesired sexual activity by one person on another, often on a repeated basis. 

verb
  • To injure; to maltreat; to hurt; to treat with cruelty, especially repeatedly. 

  • To imbibe a drug for a purpose other than it was intended; to intentionally take more of a drug than was prescribed for recreational reasons; to take illegal drugs habitually. 

  • To put to a wrong use; to misapply; to use improperly; to misuse; to use for a wrong purpose or end; to pervert 

  • To attack with coarse language; to insult; to revile; malign; to speak in an offensive manner to or about someone; to disparage. 

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. 

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