Parlance is the particular way a group uses words. In common parlance, in legal parlance, modern parlance.
It appears almost only in the phrase in some parlance, and its job is to flag that a word is being used in a special sense. The French behind it simply means speaking.
1nounparlanceThe particular way a group uses words.
“In medical parlance, a heart attack is called a myocardial infarction.”
parlance is a usage.
The French is to talk, the same talking behind parliament, which is a place built for it. Parlance is the way one group talks.
hooks ontoparliament
Anglo-Norman parlance comes from parler, to speak, from Latin parabolare.
Anglo-Norman
parlance
Middle English
*parlaunce
English, today
parlance
Built from
From Middle English parlaunce, from Anglo-Norman parlance, parlaunce, from parler (“to talk”) + -ance.
Etymology from Wiktionary, CC BY-SA