Gallo-Romance
noun
Gal·lo-Ro·mance ˌga-lō-rō-ˈman(t)s 
-rə-;
-ˈrō-ˌman(t)s
: the Romance speech that developed out of the spoken Latin of Transalpine Gaul
Word History
Etymology
Gallo- "of Gaul or France" (from Latin Gallus "a gaul" + -o-) + romance entry 1, after French gallo-romain
First Known Use
1907, in the meaning defined above