Jehovah vs demigod

Jehovah

noun
  • A Jehovah's Witness. 

name
  • The personal name of God in the Hebrew Scriptures; in Hebrew, יהוה (YHVH) 

demigod

noun
  • A half-god or hero; the offspring of a deity and a mortal. 

  • Someone held up for reverence as a supreme example. 

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