Name of Armenia
The name Armenia entered English via Latin, from Ancient Greek Ἀρμενία.
The Armenian endonym for the Armenian people and country is hay (pl. hayer) and Hayastan, respectively. The exact etymologies of the names of Armenia are unknown, and there are various speculative attempts to connect them to older toponyms or ethnonyms.
Ararat/Urartu
Used historically as a synonym for Armenia,[38] in the forms of Urartu in the Assyrian dialect of Akkadian and Urashtu in the Babylonian dialect, as well as Ararat in Biblical Hebrew. The name Ararat was changed to Armenia in the Bible as early as the 1st century AD in historiographical works[39] and very early Latin translations.[40] This name was attested as Uruatri as early as the 13th century BC by Assyrian king Shalmaneser I, and it was used interchangeably with Armenia[41] until the last known attestation from the 5th century BC by Xerxes in his XV Inscriptions.[42] Sometime during the early periods of Classical Antiquity, the use of Urartu declined and was fully replaced with Armenia. The name continued to be used in the form of Ayrarat[43] for the central province of Ancient Armenia (also attested as Aurarat by Strabo),[44] as a scarcely used alternative name for the First Republic of Armenia (Araratian Republic),[45][46] and for a short-lived and self-proclaimed Kurdish state known as the Republic of Ararat. Today, Ararat is used as one of the names given to the twin-peaked mountain in the Armenian Highlands, in modern-day Turkey, and for a province by the same name in the Republic of Armenia. It's also a common given name used by Armenians.