trauma vs traumatology

trauma

noun
  • An emotional wound leading to psychological injury. 

  • An event that causes great distress. 

  • Any serious injury to the body, often resulting from violence or an accident. 

traumatology

noun
  • A branch of medicine that deals with the diagnosis and treatment of trauma. 

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