Proper noun
Vulgar Latin
(linguistics, historical) The Latin language as spoken by the Roman people, as opposed to Classical Latin as written in formal literature. Developed into Proto-Romance and descendant languages in the Early Middle Ages.
Apocope There was a tendency to eliminate final consonants in Vulgar Latin, either by dropping them ( apocope ) or adding a vowel after them ( epenthesis ). Source: Internet
Already in Vulgar Latin intertonic vowels between a single consonant and a following /r/ or /l/ tended to drop: vétulum "old" > veclum > Dalmatian vieklo, Sicilian vecchiu, Portuguese velho. Source: Internet
Consonant cluster simplification In general, many clusters were simplified in Vulgar Latin. Source: Internet
Bark "small ship" is attested from 1420, from Old French barque, from Vulgar Latin barca (400 AD). Source: Internet
If it was not preferred in Classical Latin, then it most likely came from the invisible contemporaneous Vulgar Latin. Source: Internet
Hence, it is possible to speak of, for example, the loss of initial /j/ in unstressed syllables in the Vulgar Latin of Cantabria (an area in northern Spain), whereas it is meaningless to speak of a similar change in the "Proto-Romance of Cantabria". Source: Internet