inconsolable vs threnetic

inconsolable

adj
  • Not consolable; unable to be consoled or comforted, usually due to grief, disappointment, or other distress. 

threnetic

adj
  • Relating to a threne; sorrowful; mournful. 

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