patois
noun
[ ˈpatwɑː ]
• the dialect of a particular region, especially one with low status in relation to the standard language of the country.
• "the nurse talked to me in a patois that even Italians would have had difficulty in understanding"
Similar:
vernacular,
dialect,
local parlance,
local variety,
regional language,
non-standard language/variety,
jargon,
argot,
patter,
cant,
-speak,
(local) lingo,
Origin:
mid 17th century: French, literally ‘rough speech’, perhaps from Old French patoier ‘treat roughly’, from patte ‘paw’.