792: New Latin Feb 7, 2017

Generally when people say, 'Latin' referring to the language, the variety spoken in the Classical period is being alluded to. Nevertheless, there are many forms of Latin, including Archaic Latin, Classical Latin, Ecclesiastical Latin, and Medieval Latin, which was used largely either by those in the Roman Empire, or educated people often in the clergy during the European Dark Ages. Still, this is not when Latin ended. New Latin, used from the 14th to the end of the 19th century was used for scholarly and especially scientific purposes as a European lingua franca for the educated. Writers such as Newton used this, and we get a number of English words today from this form of Latin, such as 'bronchus' referring to the divisions of the trachea.  

For more on language-variations, see these links

Linguistics and colonialism

High and Low German