The term ‘poetic koine’ (also ‘poetico-Qurʾānic koine’) refers to a supratribal variety of Arabic which, according to some scholars, was the variety of Arabic used in pre-Islamic poetry. The linguistic situation in the pre-Islamic period is a controversial topic (history of Arabic). Opinions about this situation may be divided into two main theories. According to one theory, which was also that of the Arabic grammarians, the language of the Arab tribes in the pre-Islamic period was basically homogeneous: although there were minor differences between the dialects of the Arab tribes (p…