Northwest Arabian Arabic

Northwest Arabian Arabic is a proposed subfamily of Arabic encompassing the traditional dialects of the Sinai Peninsula, the Eastern Desert, the Negev, southern Jordan, and the northwestern corner of Saudi Arabia.
In the Sinai Peninsula; the eastern desert of Egypt, the dialect of the Maʿāzah borders the dialect of the ʿAbābdah, who speak a dialect more closely related to Sudanese Arabic.
In Saudi Arabia, the dialects of the eastern coast of the Gulf of Aqaba, the Hisma, and the Harrat al-Riha belong to the Northwest Arabian type, but the dialect of the Bili to the south is not closely related.
Classification.
The Northwest Arabian Arabic dialects display several innovations from Proto-Arabic:
Dialects, accents, and varieties.
There are several differences between the western and eastern branches of Northwest Arabian Arabic:
Characteristics.
The following are some archaic features retained from Proto-Arabic: