Latin ( or ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally spoken by the Latins in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic, it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. It has greatly influenced many languages, including English, having contributed many words to the English lexicon, particularly after the Christianisation of the Anglo-Saxons and the Norman Conquest. Latin roots appear frequently in the technical vocabulary used by fields such as theology, the sciences, medicine, and law.

By the late Roman Republic, Old Latin had evolved into standardised Classical Latin. Vulgar Latin refers to the less prestigious colloquial registers, attested in inscriptions and some literary works such as those of the comic playwrights Plautus and Terence and the author Petronius. While often called a "dead language", Latin did not undergo language death. Between the 6th and 9th centuries, natural language change in the vernacular Latin of different regions evolved into distinct Romance languages. After the fall of the Western Roman Empire, Latin remained the common language of international communication, science, scholarship and academia in Europe into the early 19th century, by which time modern languages had supplanted it in common academic and political usage.

Late Latin is the literary form of the language from the 3rd century AD onward. No longer spoken as a native language, Medieval Latin was used across Western and Catholic Europe during the Middle Ages as a working and literary language from the 9th century to the Renaissance, which then developed a classicising form, called Renaissance Latin. This was the basis for Neo-Latin, which evolved during the early modern period. Latin was taught to be written and spoken at least until the late seventeenth century, when spoken skills began to erode; Contemporary Latin is generally studied to be read rather than spoken. Ecclesiastical Latin remains the official language of the Holy See and the Roman Rite of the Catholic Church.

Latin grammar is highly fusional, with classes of inflections for case, number, person, gender, tense, mood, voice, and aspect. The Latin alphabet is directly derived from the Etruscan and Greek alphabets.

History

A number of phases of the language have been recognised, each distinguished by subtle differences in vocabulary, usage, spelling, and syntax. There are no hard and fast rules of classification; different scholars emphasise different features. As a result, the list has variants, as well as alternative names.

In addition to the historical phases, Ecclesiastical Latin refers to the styles used by the writers of the Roman Catholic Church from late antiquity onward, as well as by Protestant scholars.

Old Latin

The earliest known form of Latin is Old Latin, also called Archaic or Early Latin, which was spoken from the Roman Kingdom, traditionally founded in 753 BC, through the later part of the Roman Republic, up to 75 BC, i.e. before the age of Classical Latin. It is attested both in inscriptions and in some of the earliest extant Latin literary works, such as the comedies of Plautus and Terence. The Latin alphabet was devised from the Etruscan alphabet. The writing later changed from what was initially either a right-to-left or a boustrophedon script to what ultimately became a strictly left-to-right script.

Classical Latin

During the late republic and into the first years of the empire, from about 75 BC to AD 200, a new Classical Latin arose, a conscious creation of the orators, poets, historians and other literate men, who wrote the great works of classical literature, which were taught in grammar and rhetoric schools. Today's instructional grammars trace their roots to such schools, which served as a sort of informal language academy dedicated to maintaining and perpetuating educated speech.

Vulgar Latin

Philological analysis of Archaic Latin works, such as those of Plautus, which contain fragments of everyday speech, gives evidence of an informal register of the language, Vulgar Latin (termed 'the speech of the masses', by Cicero). Some linguists, particularly in the nineteenth century, believed this to be a separate language, existing more or less in parallel with the literary or educated Latin, but this is now widely dismissed. "Comparative scholars, especially in the nineteenth century ... tended to see Vulgar Latin and literary Latin as two very different kinds of language, or even two different languages altogether ... but [this] is now out of date"

The term 'Vulgar Latin' remains difficult to define, referring both to informal speech at any time within the history of Latin, and the kind of informal Latin that had begun to move away from the written language significantly in the post-Imperial period, that led ultimately to the Romance languages.

During the Classical period, informal language was rarely written, so philologists have been left with only individual words and phrases cited by classical authors, inscriptions such as Curse tablets and those found as graffiti. In the Late Latin period, language changes reflecting spoken (non-classical) norms tend to be found in greater quantities in texts. As it was free to develop on its own, there is no reason to suppose that the speech was uniform either diachronically or geographically. On the contrary, Romanised European populations developed their own dialects of the language, which eventually led to the differentiation of Romance languages.

Late Latin

Late Latin is a kind of written Latin used in the 3rd to 6th centuries. This began to diverge from Classical forms at a faster pace. It is characterised by greater use of prepositions, and word order that is closer to modern Romance languages, for example, while grammatically retaining more or less the same formal rules as Classical Latin.

Ultimately, Latin diverged into a distinct written form, where the commonly spoken form was perceived as a separate language, for instance early French or Italian dialects, that could be transcribed differently. It took some time for these to be viewed as wholly different from Latin however.

After the Western Roman Empire fell in 476 and Germanic kingdoms took its place, the Germanic people adopted Latin as a language more suitable for legal and other, more formal uses.

Initially Latin was also retained by the Eastern Roman Empire (Byzantine Empire) as the language of the government and legislation, even though the vast majority of its population spoke Greek and other Eastern languages such as Syriac and Coptic. It even enjoyed a brief flowering as the language of the great codification of laws, the Corpus Iuris Civilis under Justinian I, himself a native Latin speaker. After Justinian I's death, the gradual territorial retreat of the Empire and its near collapse in the wake of the Muslim conquests led to the near extinction of Latin as a spoken and official language. The surviving rump Roman state replaced Latin with the Greek language. Latin was retained on coinage and in some court ceremonies until the 11th century, albeit often in a ritual and fossilised form. In a surviving letter from the late 9th century, the Carolingian emperor Louis II invoked the fact that the Byzantine imperial chancery struggled to write in proper Latin as an argument in his ideological dispute over who was the rightful Roman emperor.

Romance languages

While the written form of Latin was increasingly standardised into a fixed form, the spoken forms began to diverge more greatly. Currently, the six most widely spoken Romance languages by number of native speakers are Spanish, Portuguese, French, Italian, Romanian and Catalan. Despite dialectal variation, which is found in any widespread language, the languages currently existing in Spain, France, Portugal, and Italy have retained a remarkable unity in phonological forms and developments, bolstered by the stabilising influence of their common Christian (Roman Catholic) culture.

It was not until the Muslim conquest of the Iberian Peninsula in 711, cutting off communications between the major Romance regions, that the languages began to diverge seriously. The spoken Latin that would later become Romanian diverged somewhat more from the other varieties, as it was largely separated from the unifying influences in the western part of the Empire.

Spoken Latin began to diverge into distinct languages by the 9th century at the latest, when the earliest extant Romance writings begin to appear. They were, throughout the period, confined to everyday speech, as Medieval Latin was used for writing.

For many Italians using Latin, though, there was no complete separation between Italian and Latin, even into the beginning of the Renaissance. Petrarch for example saw Latin as a literary version of the spoken language.See Introduction,

Medieval Latin

Medieval Latin is the written Latin in use during that portion of the post-classical period when no corresponding Latin vernacular existed, that is from around 700 to 1500 AD. The spoken language had developed into the various Romance languages; however, in the educated and official world, Latin continued without its natural spoken base. Moreover, this Latin spread into lands that had never spoken Latin, such as the Germanic and Slavic nations. It became useful for international communication between the member states of the Holy Roman Empire and its allies.

Without the institutions of the Roman Empire that had supported its uniformity, Medieval Latin was much more liberal in its linguistic cohesion: for example, in classical Latin and are used as auxiliary verbs in the perfect and pluperfect passive, which are compound tenses. Medieval Latin might use and instead. Furthermore, the meanings of many words were changed and new words were introduced, often under influence from the vernacular. Identifiable individual styles of classically incorrect Latin prevail.

Renaissance and Neo-Latin

Renaissance Latin, in use from around 1300 to 1500, and the classicised Latin that followed through to the present are often grouped together as Neo-Latin, or New Latin, which have in recent decades become a focus of renewed study, given their importance for the development of European culture, religion and science."When we talk about "Neo-Latin", we refer to the Latin ... from the time of the early Italian humanist Petrarch (1304–1374) up to the present day" "Neo-Latin is the term used for the Latin which developed in Renaissance Italy ... Its origins are normally associated with Petrarch" The vast majority of written Latin belongs to this period, but its full extent is unknown.

The Renaissance reinforced the position of Latin as a spoken and written language by the scholarship by the Renaissance humanists. Petrarch and others began to change their usage of Latin as they explored the texts of the Classical Latin world. Skills of textual criticism evolved to create much more accurate versions of extant texts through the fifteenth and sixteenth centuries, and some important texts were rediscovered. Comprehensive versions of authors' works were published by Isaac Casaubon, Joseph Scaliger and others.Latin Studies in Nevertheless, despite the careful work of Petrarch, Politian and others, first the demand for manuscripts, and then the rush to bring works into print, led to the circulation of inaccurate copies for several centuries following.Criticism, textual in