langue d'oc

[lahng dawk] /lɑ̃g ˈdɔk/
noun
1.
the Romance language of medieval southern France: developed into modern Provençal.
Origin
1700-10; < French: language of oc, yes < Latin hōc (ille fēcit) this (he did); cf. Occitan
British Dictionary definitions for langue d'oc

langue d'oc

/lɑ̃ɡ dɔk/
noun
1.
the group of medieval French dialects spoken in S France: often regarded as including Provençal Compare langue d'oïl
Word Origin
literally: language of oc (the Provençal form for yes), ultimately from Latin hoc this