morbid vs pathological

morbid

adj
  • Of, or relating to disease. 

  • Grisly or gruesome. 

  • Suggesting the horror of death; macabre or ghoulish. 

  • Taking an interest in, or fixating on, unhealthy or unwholesome subjects such as death, decay, disease. 

pathological

adj
  • Pertaining to pathology. 

  • Relating to, amounting to, causing, or caused by a physical or mental disorder. 

  • Having properties which are counterintuitive or difficult to handle. 

  • Having properties that cause unusually bad behaviour, especially regarding correctness or performance. 

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