Eastern Armenian is one of the two standardized forms of Modern Armenian, the other being Western Armenian. Wikipedia

One of the two languages of the Armenian language family Wikidata

One of the two standardized forms of the modern Armenian language, the other being Western Armenian. It is the official language of the Republic of Armenia and is the dialect spoken by Armenian diaspora in CIS countries and Iran. It developed in the 19th century in Russian Armenia. Wiktionary

Language. Wiktionary (translation)