celestial vs skyly

celestial

adj
  • Relating to the sky or outer space, regarded as the realm of the sun, moon, planets, and stars. 

  • Synonym of heavenly: of or related to Heaven and the divine. 

  • Of or pertaining to the highest degree of glory. 

  • Extremely good, pleasant, or blissful; heavenly. 

noun
  • An inhabitant of heaven. 

skyly

adj
  • Of, resembling, or relating to the sky; celestial 

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