Colloquy

From Latin colloquium ("conversation"),

American Heritage 2000

from com- ("together, with") (English com-) + form of loquor ("speak") (from which English locution and other words).

Online Etymology Dictionary

(plural colloquies)

1897, Henry James, What Maisie Knew:And she repeated the free caress into which her colloquies with Maisie almost always broke and which made the child feel that her affection at least was a gage of safety.
1922, w, “Piracy”: A Romantic Chronicle of These Days Chapter 1/1/2, House Prees and Bloods ... were everywhere to be seen in earnest colloquy. For the matter was, that there was some sort of night-prowler about the school grounds.

(obsolete) A formal conference. 16th-17th c.
(Christianity) A church court held by certain Reformed denominations. from 17th c.
A written discourse. from 18th c.
(legal) 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.

1999, H. L. Pohlman, The Whole Truth?: A Case of Murder on the Appalachian Trail, At the end of the colloquy, Judge Spicer asked Carr whether anyone had "pressured" him into accepting the deal.