healing vs iatric

healing

noun
  • The process where the cells in the body regenerate and repair themselves. 

  • An act of healing, as by a faith healer. 

  • The psychological process of dealing with a problem or problems. 

iatric

adj
  • Of or pertaining to a physician or physicians. 

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