Occitan, especially as spoken and written in medieval times.
A group of French dialects spoken in medieval S France and surviving in Provençal.
Origin of langue-d-oc
- Fr, lit., language of oc (< Prov, yes < L hoc, this thing): from characteristic use of oc for affirmation (in contrast to langue d'oïl)
From Webster's New World College Dictionary, 5th Edition
From American Heritage Dictionary of the English Language, 5th Edition