hematoma vs mortise

hematoma

noun
  • A swelling of blood, usually clotted, which forms as a result of broken blood vessels. 

mortise

noun
  • A hole that is made to receive a tenon so as to form a joint. 

  • Stability; power of adhesion. 

verb
  • To adjust the horizontal space between selected pairs of letters; to kern. 

  • To join by a mortise and tenon. 

  • To cut a mortise in. 

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