paw vs trephine

paw

verb
  • To draw the forefoot along the ground; to beat or scrape with the forefoot. 

  • To go through something (such as a garbage can) with paws. 

  • To touch someone in a sexual way. 

  • To clumsily dig through something. 

  • To gently push on something with a paw. 

noun
  • A hand. 

  • Father; pa. 

  • The soft foot of a mammal or other animal, generally a quadruped, that has claws or nails; comparable to a human hand or foot. 

trephine

verb
  • To perforate with a trephine. 

  • To use a trephine during surgery. 

noun
  • A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan. 

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