morbose vs unhealthy

morbose

adj
  • Proceeding from disease; morbid; unhealthy. 

unhealthy

adj
  • characterized by, or conducive to poor health 

  • characterized by disturbed mental health 

  • tending to corrupt 

  • sick or ill 

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