Ether vs Roger

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. 

Roger

name

  • A male given name from the Germanic languages. 

  • A surname originating as a patronymic. 

  • Jolly Roger (pirate flag) 

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