"Parlance" Natural Recordings by Native Speakers
The word "parlance" refers to the language, terms, or idioms characteristic of a particular group, region, or profession. It can also describe the style or tone of a person's speech, which is often unique to that individual. For example, someone's "parlance" might be informal or formal, casual or precise, or include distinctive turns of phrase.
parleying (verb): to negotiate or discuss in a polite and diplomatic manner, especially between representatives of opposing parties or groups