Iran
wiktionary
From Persian ایران (irân), from Middle Persian 𐭠𐭩𐭥𐭠𐭭 (ʾērān, “of the Aryans”). See 𐭠𐭩𐭥𐭠𐭭 (ʾērān) for word formation, further etymology and cognates.
The name of the political entity is a 3rd-century development that derives from the indigenous ethnolinguistic name of the Iranian peoples, [1] i.e. the great variety of Iranian tribes that spoke an Iranian language.
etymonline
Iran
country name, from Persian Iran, from Middle Persian Ērān "(land) of the Iranians," genitive plural of ēr- "an Iranian," from Old Iranian *arya- (Old Persian ariya-, Avestan airya-) "Iranian", from Indo-Iranian *arya- or *ārya-, a self-designation, perhaps meaning "compatriot" (see Aryan).
In English it began to be used 1760s, by orientalists and linguists (Alexander Dow, William Jones), in historical contexts, and usually with a footnote identifying it with modern Persia; as recently as 1903 "Century Dictionary" defined it as "the ancient name of the region lying between Kurdistan and India." In 1935 the government of Reza Shah Pahlavi requested governments with which it had diplomatic relations to call his country Iran, after the indigenous name, rather than the Greek-derived Persia.
