communion vs du'a'

communion

noun
  • Holy Communion. 

  • A form of ecclesiastical unity between the Roman Church and another, so that the latter is considered part of the former. 

  • A joining together of minds or spirits; a mental connection. 

du'a'

noun
  • private prayer by an individual 

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