callus vs tear

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. 

tear

noun
  • A hole or break caused by tearing. 

  • A rampage. 

  • A partially vitrified bit of clay in glass. 

  • A drop of clear, salty liquid produced from the eyes by crying or irritation. 

  • Something in the form of a transparent drop of fluid matter; also, a solid, transparent, tear-shaped drop, as of some balsams or resins. 

  • That which causes or accompanies tears; a lament; a dirge. 

verb
  • To destroy or reduce abstract unity or coherence, such as social, political or emotional. 

  • To injure as if by pulling apart. 

  • To move or act with great speed, energy, or violence. 

  • To produce tears. 

  • To make (an opening) with force or energy. 

  • To become torn, especially accidentally. 

  • To rend (a solid material) by holding or restraining in two places and pulling apart, whether intentionally or not; to destroy or separate. 

  • To remove by tearing. 

  • To smash or enter something with great force. 

  • To demolish 

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