cohort vs confederate

cohort

noun
  • An accomplice; abettor; associate. 

  • A demographic grouping of people, especially those in a defined age group, or having a common characteristic. 

  • Any division of a Roman legion, normally of about 500 or 600 men (equalling about six centuries). 

  • Any band or body of warriors. 

  • A group of people supporting the same thing or person. 

  • A set of individuals in a program, especially when compared to previous sets of individuals within the same program. 

  • A natural group of orders of organisms, less comprehensive than a class. 

  • A colleague. 

verb
  • To associate with such a group 

confederate

noun
  • An accomplice in a plot. 

  • A member of a confederacy. 

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

verb
  • To combine in a confederacy. 

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

  • banded together; allied. 

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