 Around Legnano it's spoken Legnanese dialect, dialect of the Lombard language (belonging to the western branch), spoken by about 30% of the population of the area where it is spread.Like all Western Lombard dialects, legnanese is a Romance language derived from Latin with a Celtic substrate and longobard superstratum.In Legnanese dialect there are those who find traces of the languages of the peoples prior to the Latinization of the region, in particular the ancient Ligurian, although the data on the actual influence of this linguistic substrate are few and of varying interpretation.