Arab Trick Makers, Saudi Arabia

The earliest documented use of the word "Arab" to refer to a people appears in the Monolith Inscription, an Akkadian language record of the 9th century BC Assyrian Conquest of Syria (Arabs had formed part of a coalition of forces opposed to Assyria). Listed among the booty captured by the army of king Shalmaneser III of Assyria in the Battle of Qarqar are 1000 camels of "Gi-in-di-bu'u the ar-ba-a-a" or "the man Gindibu belonging to the ʕarab" (ar-ba-a-a being an adjectival nisba of the noun ʕarab).
The most popular Arab account holds that the word 'Arab' came from an eponymous father called Yarab, who was supposedly the first to speak Arabic. Al-Hamdani had another view; he states that Arabs were called GhArab (West in Semitic) by Mesopotamians because Arabs resided to the west of Mesopotamia; the term was then corrupted into Arab. Yet another view is held by Al-Masudi that the word Arabs was initially applied to the Ishmaelites of the "Arabah" valley.
The root of the word has many meanings in Semitic languages including "west/sunset," "desert," "mingle," "merchant," "raven" and are "comprehensible" with all of these having varying degrees of relevance to the emergence of the name. It is also possible that some forms were metathetical from ʿ-B-R "moving around" (Arabic ʿ-B-R "traverse"), and hence, it is alleged, "nomadic."