callus vs scrabble

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. 

scrabble

noun
  • A scramble. 

verb
  • To scrape or scratch powerfully with hands or claws. 

  • To gather hastily. 

  • To scribble. 

  • To mark with irregular lines or letters; to scribble on. 

  • To move with difficulty by making rapid movements back and forth with the hands or paws. 

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