From Wiktionary, the free dictionary
Compare French gros.
grôs (feminine grôssa, masculine plural grôs, feminine plural grôsses) (ORB, broad)
- large
- thick
- gros in DicoFranPro: Dictionnaire Français/Francoprovençal – on dicofranpro.llm.umontreal.ca
- grôs in Lo trèsor Arpitan – on arpitan.eu