Ether vs capability

Ether

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

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. 

capability

noun
  • the power or ability to generate an outcome 

  • A digital token allowing a user or process to interact in a specified way with an object that is subject to access control. 

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