ethereal vs heavenly

ethereal

adj
  • Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy, as form, manner, thought, etc. 

  • Pertaining to the (real or hypothetical) upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere. 

  • To do with diethyl ether. 

  • Pertaining to the immaterial realm, as symbolically represented by, or (in earlier epochs) conflated with, such atmospheric and extra-atmospheric concepts. 

heavenly

adj
  • Strongly or sublimely beautiful or pleasurable. 

  • Synonym of celestial: of or pertaining to the heavens, the sky regarded as the realm of the sun, moon, planets, and stars. 

  • Of or pertaining to the kingdom of God. 

  • Of or pertaining to the heaven believed in by many religions. 

adv
  • In a manner like that of heaven; by the influence or agency of heaven; divinely, miraculously. 

  • To a degree such as to elicit great pleasure. 

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