 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.The linguistic influence of the Celts on the local speakers of Altomilanese was conspicuous, so much so that even today the dialect of Legnano is classified as "Gallo-Italic".