Ether vs Plough

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. 

Plough

name

  • The brightest seven stars of the constellation Ursa Major. They are Alkaid, Mizar, Alioth, Megrez, Dubhe, Merak, and Phecda. 

  • A surname. 

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