Rhaeto-Romance
noun
Rhae·to-Ro·mance ˌrē-tō-rō-ˈman(t)s 
-tō-rə-;
-ˈrō-ˌman(t)s
variants or less commonly Rhaeto-Romanic
ˌrē-tō-rō-ˈma-nik
: a group of Romance languages spoken in eastern Switzerland and northeastern Italy
Word History
Etymology
Latin Rhaetus of Rhaetia, ancient Roman province
First Known Use
1853, in the meaning defined above