Arabic Mac

The Arab League, a regional organization of countries intended to encompass the Arab world, defines an Arab as:
An Arab is a person whose language is Arabic, who lives in an Arabic-speaking country, and who is in sympathy with the aspirations of the Arabic-speaking peoples.
The relation of ʿarab and ʾaʿrāb is complicated further by the notion of "lost Arabs" al-ʿArab al-ba'ida mentioned in the Qur'an as punished for their disbelief. All contemporary Arabs were considered as descended from two ancestors, Qahtan and Adnan.
Versteegh (1997) is uncertain whether to ascribe this distinction to the memory of a real difference of origin of the two groups, but it is certain that the difference was strongly felt in early Islamic times. Even in Islamic Spain there was enmity between the Qays of the northern and the Kalb of the southern group. The so-called Sabaean or Himyarite language described by Abū Muhammad al-Hasan al-Hamdānī (died 946) appears to be a special case of language contact between the two groups, an originally north Arabic dialect spoken in the south, and influenced by Old South Arabian.