Waddell also discusses the "Ar" prefix, and its related meanings:
"lofty, exalted ones, loftiness, majesty fame, chiefs, governors, mistress, goddess, one who goes up, mankind, man, noble, master, lord, one of the exalted ruling race, better, stronger, braver, hero, freeman, famous, warrior, gentleman, leader, honourable, man of rank or valour, etc."
The term Aryan therefore means an ethnic group, caste, or ruling elite. Nelson's encyclopaedia adds that: "the Indo-Iranic word Arya is probably represented in the Hellenic Aristos, in the Teutonic name Arivovislus, and in Old Irish Aire or Airech (principes)". The "Ar" prefix is the root behind the word aristocracy, from the Greek aristokratia. The term Aryan is also traceable to many ancient epigraphically-attested references. Darius the Great (522-486 BC) for example who ordered to write an inscription on his tomb in which he introduces himself as:
I am Darius the great king, king of kings, king of countries containing all kinds of men, king in this great earth far and wide, son of Hystaspes, an Achaemenid, a Persian, son of a Persian, an Aryan, having Aryan lineage.
Iran also means "land of the Aryans", while Ireland is also believed to come from same word root as Iran and Aryan.