affiliate vs confederate

affiliate

verb
  • To attach (to) or unite (with); to receive into a society as a member, and initiate into its mysteries, plans, etc. 

  • To adopt; to receive into a family as one's offspring 

  • To connect in the way of descent; to trace origin to. 

  • to bring or receive into close connection; to ally. 

  • To fix the paternity of 

noun
  • Someone or something, especially, a television station, that is associated with a larger, related organization, such as a television network; a member of a group of associated things. 

confederate

verb
  • To combine in a confederacy. 

noun
  • A member of a confederacy. 

  • An accomplice in a plot. 

  • An actor who participates in a psychological experiment pretending to be a subject but in actuality working for the researcher. 

adj
  • of, relating to, or united in a confederacy 

  • banded together; allied. 

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