empyreal vs vapory

empyreal

adj
  • Fiery, made of pure fire. 

  • Of the sky or heavens. 

  • Pertaining to the highest heaven or the empyrean 

vapory

adj
  • Resembling vapor; vaporous. 

  • Characterized by the presence of vapor; full of, or obscured by, vapor. 

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