Question: Casu modde, casu cundídu and casu fràzigu , translated to English means "rotten/putrid cheese", is what  primary indigenous Romance language spoken on most of the island of Sardinia ?
Sentence (from "Casu marzu"): Although found in the island of Sardinia, a variety of this cheese is also found on the nearby island of Corsica, where it goes by the name of "casgiu merzu".
Relevant evidence: No