communion vs synergy

communion

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

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

  • Holy Communion. 

synergy

noun
  • Benefits resulting from combining different groups, people, objects or processes. 

  • The cooperation of two or more nerves, muscles, organs, etc. 

  • A synonym of binding energy. 

  • The combined action of two or more drugs where the effects are stronger than their mere sum. 

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