Earth vs Ether

Earth

name
  • The personification of the Earth or earth, (chiefly) as a fertile woman or (religion) goddess. 

  • The third planet of the Solar System; the world upon which humans live. 

Ether

name
  • The god-personification of the bright, glowing upper air of heaven. He is the Roman counterpart of Aether. 

  • The ancient American prophet of Mormon theology who wrote the Book of Ether in the Book of Mormon. 

noun
  • A unit of the Ethereum digital currency, ETH. 

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