adytum vs pantheon

adytum

noun
  • The innermost sanctuary or shrine in a temple, from where oracles were given. 

  • A private chamber; a sanctum. 

pantheon

noun
  • A temple dedicated to all the gods. 

  • All the gods of a particular people or religion, particularly the ancient Greek gods residing on Olympus, considered as a group. 

  • A category or classification denoting the most honored persons of a group. 

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