Vulgar LatinˌVulgar ˈLatin noun [uncountable] 
the form of Latin spoken in ancient Rome by the ordinary people, which is different from the ‘classical’ Latin written by well-known ancient writers. Modern romance languages like Spanish and Italian developed from Vulgar Latin.
the form of Latin spoken in ancient Rome by the ordinary people, which is different from the ‘classical’ Latin written by well-known ancient writers. Modern romance languages like Spanish and Italian developed from Vulgar Latin.