desanguinate vs phlebotomize

desanguinate

verb
  • to deprive of blood; to remove the blood from 

phlebotomize

verb
  • To perform a phlebotomy on (a person): to open a vein of (a person) to withdraw or let blood. 

  • To perform a phlebotomy on (a vein): to open (a vein) to withdraw or let blood. 

  • To perform a phlebotomy; to open a vein to withdraw or let blood. 

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