Vulgar Latin, also known as Popular or Colloquial Latin, refers to a range of informal sociolects of Latin spoken as a native language from the first century b.c. onward in the late Roman Republic and then the Empire, at first only in Italy and later also in heavily romanized provinces such as Hispania, Gaul, Illyria, Thrace, and Africa.
Non-standard Latin variety spoken by the people of Ancient Rome
The Latin language as spoken by the Roman people, as opposed to Classical Latin as written in formal literature until approximately the 4th century AD. Developed into Proto-Romance and descendant languages in the Early Middle Ages.