Old Latin, also known as Early Latin or Archaic Latin (Classical ), was the Latin language in the period before 75 BC, i.e. before the age of Classical Latin. It descends from a common Proto-Italic language; Latino-Faliscan is likely a separate branch from Osco-Umbrian with possible further relation to other Italic languages and to Celtic; e.g. the Italo-Celtic hypothesis.

The use of "old", "early" and "archaic" has been standard in publications of Old Latin writings since at least the 18th century. The definition is not arbitrary, but the terms refer to spelling conventions and word forms not generally found in works written under the Roman Empire. This article presents some of the major differences.

Old Latin

The earliest known specimen of Latin seems to be on the Praeneste fibula. A new analysis done in 2011 declared it to be genuine "beyond any reasonable doubt" and dating from the Orientalizing period, in the first half of the seventh century BC. Other Old Latin inscriptions dated to either the late Roman Kingdom or early Roman Republic include the Lapis Niger stone, the Duenos Inscription on a kernos vase, and the Garigliano bowl of Bucchero type.

Old Latin

Philological constructs

The old-time language

The concept of Old Latin (Prisca Latinitas) is as old as the concept of Classical Latin – both labels date to at least as early as the late Roman Republic. In that period Cicero, along with others, noted that the language he used every day, presumably upper-class city Latin, included lexical items and phrases that were heirlooms from a previous time, which he called verborum vetustas prisca, translated as "the old age/time of language".

Old Latin

In the classical period, Prisca Latinitas, Prisca Latina and other idioms using the adjective always meant these remnants of a previous language, which, in Roman philology, was taken to be much older in fact than it really was. Viri prisci, "old-time men", meant the population of Latium before the founding of Rome.

The four Latins of Isidore

In the Late Latin period, when Classical Latin was behind them, Latin- and Greek-speaking grammarians were faced with multiple phases, or styles, within the language. Isidore of Seville ( 560 – 636) reports a classification scheme that had come into existence in or before his time: "the four Latins" ("Moreover, some people have said that there are four Latin languages"; "Latinas autem linguas quattuor esse quidam dixerunt"). They were:

Prisca, spoken before the founding of Rome, when Janus and Saturn ruled Latium, to which period Isidore dated the Carmen Saliare Latina, dated from the time of king Latinus, in which period he placed the laws of the Twelve Tables Romana, essentially equal to Classical Latin Mixta, "mixed" Classical Latin and Vulgar Latin, known today as Late Latin.

This scheme persisted with little change for some thousand years after Isidore.

Old Latin

In 1874, John Wordsworth used this definition: "By Early Latin I understand Latin of the whole period of the Republic, which is separated very strikingly, both in tone and in outward form, from that of the Empire."

Although the differences are striking and can be easily identified by Latin readers, they are not such as to cause a language barrier. Latin speakers of the empire had no reported trouble understanding Old Latin, except for the few texts that must date from the time of the kings, mainly songs. Thus, the laws of the Twelve Tables (5th century BC) from the early Republic were comprehensible, but the Carmen Saliare, probably written under Numa Pompilius (who traditionally reigned from 715 to 673 BC), was not entirely clear (and remains so). On the other hand, Polybius, a Greek historian of Rome who flourished in the late second century BC, commented on "the first treaty between Rome and Carthage", (which he dated to 28 years before Xerxes I crossed into Greece; that is, in 508 BC) that "the ancient Roman language differs so much from the modern that it can only be partially made out, and that after much application by the most intelligent men".