Arabian
They are a major panethnic (is a political neologism used to group together related ethnic groups like Asian Americans) group comprising the Arab World.
Originally, "Arabs" were synonymous with Arabians (inhabitants of the Arabian Peninsula), until the Arabisation of people with no Arabian ancestry, mostly during the Abbasid Caliphate. Therefore, all uses of the word "Arab" prior to the 6th century, and most of those prior to the 13th century AD refer specifically to Arabians. Later uses of the word "Arab" could refer to any individual whose familial ancestry corresponds to the wider linguistic and panethnic definitions of Arabs.
If the Arab panethnicity is regarded as a single population, then it constitutes one of the world's largest groups after Han Chinese.
