1. Proto-Indo-Iranian - Noun
2. Proto-Indo-Iranian - Adjective
3. Proto-Indo-Iranian - Proper noun
Proto-Indo-Iranian
(linguistics, uncountable) The hypothetical ancestor language or protolanguage of Indo-Aryan languages, the Iranian languages, the Dardic languages and the Nuristani languages.
Proto-Indo-Iranian (countable and uncountable, plural Proto-Indo-Iranians)
(anthropology, countable) A person who spoke the Proto-Indo-Iranian language.
Proto-Indo-Iranian (not comparable)
(linguistics, anthropology) Of or pertaining to the Proto-Indo-Iranian language, or the people who spoke it.
Conceivably, Proto-Armenian would have been located between Proto-Greek and Proto-Indo-Iranian, consistent with the fact that Armenian shares certain features only with Indo-Iranian (the satem change) but others only with Greek (s > h). Source: Internet
The common ancestor of all of the languages in this family is called Proto-Indo-Iranian —also known as Common Aryan—which was spoken in approximately the late 3rd millennium BC. Source: Internet
The spoked wheel did not appear in Mesopotamia until the mid-2000s BC. citation Early Indo-Iranians The area of the spoke-wheeled chariot finds within the Sintashta-Petrovka Proto-Indo-Iranian culture is indicated in purple. Source: Internet
Graeco-Aryan unity would have become divided into Proto-Greek and Proto-Indo-Iranian by the mid-third millennium BC. Source: Internet
The earliest fully developed spoke-wheeled horse chariots are from the chariot burials of the Andronovo (Timber-Grave) sites of the Sintashta-Petrovka Proto-Indo-Iranian culture in modern Russia and Kazakhstan from around 2000 BC. Source: Internet