The Polish word for Italian (language) is something like wloski (there's a slanted line through the L), and the Polish term for Italy is Wlochy. This is related to words like Wallachia and Walloon and Vlach, and maybe to Wales/Welsh...ultimately derived from the term the German tribes outside the Empire had for the people who were subjects of the Romans. The Poles must have picked the term up from the Germans at some point and applied it to Italy.