federation vs immixture

federation

noun
  • Act of joining together into a single political entity. 

  • Any society or organisation formed from separate groups or bodies. 

  • A collection of network or telecommunication providers that offer interoperability. 

  • Array of nations or states that are unified under one central authority which is elected by its members. 

adj
  • Of an architectural style popular around the time of federation. 

immixture

noun
  • The act, or the result of immixing 

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