colloquy vs discourse

colloquy

verb
  • To converse. 

noun
  • A conversation or dialogue. 

  • A church court held by certain Reformed denominations. 

  • A written discourse. 

  • A discussion during a trial in which a judge ensures that the defendant understands what is taking place in the trial and what their rights are. 

discourse

verb
  • To engage in discussion or conversation; to converse. 

  • To exercise reason; to employ the mind in judging and inferring; to reason. 

  • To write or speak formally and at length. 

noun
  • Expression in words, either speech or writing. 

  • A formal lengthy exposition of some subject, either spoken or written. 

  • An institutionalized way of thinking, a social boundary defining what can be said about a specific topic (after Michel Foucault). 

  • Any rational expression, reason. 

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