degenerative vs skeletal

degenerative

adj
  • Characterized by or causing degeneration. 

skeletal

adj
  • haggard, cadaverous, emaciated or gaunt 

  • of, or relating to the skeleton 

  • barebones, lacking elaboration 

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