pourparler (n.) -an informal, preliminary discussion
“If that last line of Pinker’s pourparler reminds you of Garner’s “Essentially, descriptivists and presecriptivists are approaching different problems,” be advised that the similarity is neither coincidence nor plagiarism.”
Wallace, David Foster. “Authority and American Usage.” Consider the Lobster. New York: Back Bay Books, 2007. p 92.