axe vs callus

axe

noun
  • A tool for felling trees or chopping wood etc. consisting of a heavy head flattened to a blade on one side, and a handle attached to it. 

  • A position, interest, or reason in buying and selling stock, often with ulterior motives. 

  • An ancient weapon consisting of a head that has one or two blades and a long handle. 

  • A dismissal or rejection. 

  • A drastic reduction or cutback. 

  • A gigging musician's particular instrument, especially a guitar in rock music or a saxophone in jazz. 

verb
  • To lay off, terminate or drastically reduce, especially in a rough or ruthless manner; to cancel. 

  • To furnish with an axle. 

  • To fell or chop with an axe. 

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. 

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