Islamic conquests. The earliest forms of Arabic are known as
Old Arabic and survive in inscriptions in
Ancient North Arabian scripts as well as fragments of pre-Islamic poetry preserved in the classical literature. It is hypothesized that by the late 6th century AD a relatively uniform intertribal "poetic
koiné", a
synthetic language distinct from the spoken vernaculars, had developed with conservative as well as innovative features, including the case endings known as
ʾiʿrab. It is uncertain to what degree the spoken vernaculars corresponded to the literary style, however, as many surviving inscriptions in the region seem to indicate simplification or absence of the inflectional morphology of Classical Arabic. It is often said that the
Bedouin dialects of
Najd were probably the most conservative (or at least resembled the elevated intertribal idiom morphologically and lexically more than the other contemporary vernaculars), a view possibly supported by the romanticization of the ‘purity’ of the language of the desert-dwellers (as opposed to the "
corrupted" dialects of the city-dwellers) expressed in many medieval Arabic works, especially those on grammar, though some argue that all the spoken vernaculars probably deviated greatly from the supraregional literary norm to different degrees, while others, such as
Joshua Blau, believe that "the differences between the classical and spoken language were not too far-reaching". The
Arabic script is generally believed to have evolved from
local cursive varieties of the
Aramaic script, which have been adopted to write Arabic, though some, such as
Jean Starcky, have postulated that it instead derives direct from the
Syriac script since, unlike Aramaic, the scripts of Arabic and Syriac are both cursive. Indigenous speculations concerning the
history of the script sometimes ascribe the origins of the script, and oftentimes the language itself also, to one of the ancient major figures in Islam, such as
Adam or
Ishmael, though others mention that it was introduced to Arabia from afar. By the 2nd century
AH (9th century
AD) the language had been standardized by Arabic grammarians and knowledge of Classical Arabic became a prerequisite for rising into the higher classes throughout the Islamic world, since it was the
lingua franca across the
Middle East,
North Africa, and the
Horn of Africa, and thus the region eventually developed into a widespread state of
diglossia. Consequently the classical language, as well as the
Arabic script, became the subject of much mythicization and was eventually associated with religious, ethnic, and racial conflicts, such as the rise of many groups traditionally categorized under the broad label of
al-Shu'ibiyya (roughly meaning "those of the nations", as opposed to Arab tribes), who, despite the remarkable differences in their views, generally rejected the stressed and often dogmatized belief that the Arabs, as well as their language, were far superior to all other races and ethnicities, and so the term later came to be applied pejoratively to such groups by their rivals. Moreover, many Arabic grammarians strove to attribute as many words as possible to a "pure Arabic origin", especially those in the Qur'an. Thus, exegetes, theologians, and grammarians who entertained the idea of the presence of "impurities" (for example, naturalized loanwords) in the Qur'an were severely criticized and their proposed etymologies denounced in most cases. Nonetheless, the belief in the racial and ethnic supremacy of the Arabs and the belief in the
linguistic supremacy of Arabic did not seem to be necessary entailments of each other. Poems and sayings attributed to Arabic-speaking personages who lived before the standardization of the Classical idiom, which are preserved mainly in far later manuscripts, contain traces of elements in morphology and syntax that began to be regarded as chiefly poetic or characteristically regional or dialectal. Despite this, these, along with the Qur'an, were perceived as the principal foundation upon which grammatical inquiry, theorizing, and reasoning were to be based. They also formed the literary ideal to be followed, quoted, and imitated in solemn texts and speeches. Lexically, Classical Arabic may retain one or more of the dialectal forms of a given word as variants of the standardized forms, albeit often with much less currency and use. ==Phonology==