The term Arabic is not quite unequivocal. Some scholars use it to mark the vernacular elements which penetrated mediaeval Arabic texts, others to denote the combination of Standard Arabic and vernacular elements characteristic of these texts. Some even use it without differentiation in both senses.
Therefore, it has been proposed to use and to denote the vernacular elements in mediaeval texts, and to designate the language of these texts, including Standard Arabic and vernacular, and to dub the vernacular elements the Middle Arabic layer of Neo-Arabic. It seems, however, more expedient to reserve the use of the term Middle Arabic for the mixed language of mediaeval texts, containing Standard Arabic, Neo-Arabic, and, as we shall see later, pseudo-correct features, and to call the vernacular component of Middle Arabic Neo-Arabic or, more exactly, the early layer of Neo-Arabic, its later layer being the language of the modern Arabic dialects.