empyreal vs paradisaic

empyreal

adj
  • Pertaining to the highest heaven or the empyrean 

  • Fiery, made of pure fire. 

  • Of the sky or heavens. 

paradisaic

adj
  • Of or relating to paradise (or heaven) 

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