Fran·co-Pro·ven·çal or Fran·co·pro·ven·çal 
(frăng′kō-prō′vän-säl, -prŏv′ən-)
(frăng′kō-prō′vän-säl, -prŏv′ən-)n.
Any of a group of Romance dialects traditionally spoken in east-central France, western Switzerland, and northwest Italy, closely related to French and Provençal.