colloquy vs doctoral thesis

colloquy

noun
  • A written discourse. 

  • A conversation or dialogue. 

  • A church court held by certain Reformed denominations. 

  • 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. 

verb
  • To converse. 

doctoral thesis

noun
  • A research paper that a student writes in order to complete the requirements for a doctorate; a dissertation. 

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