Proto-Indo-Aryan in ancient Near East

From: kalyan
Message: 71551
Date: 2013-11-11

"Sanskritic interpretations of Mitanni names render Artashumara (artaššumara) as Arta-smara "who thinks of Arta/Ṛta" (Mayrhofer II 780), Biridashva (biridašṷa, biriiašṷa) as Prītāśva "whose horse is dear" (Mayrhofer II 182), Priyamazda (priiamazda) as Priyamedha "whose wisdom is dear" (Mayrhofer II 189, II378), Citrarata as citraratha "whose chariot is shining" (Mayrhofer I 553), Indaruda/Endaruta as Indrota "helped by Indra" (Mayrhofer I 134), Shativaza (šattiṷaza) as Sātivāja "winning the race price" (Mayrhofer II 540, 696), Šubandhu as Subandhu 'having good relatives" (a name in Palestine, Mayrhofer II 209, 735), Tushratta (tṷišeratta, tušratta, etc.) as *tṷaišaratha, Vedic Tveṣaratha "whose chariot is vehement" (Mayrhofer I 686, I 736)." http://en.wikipedia.org/wiki/Indo-Aryan_superstrate_in_Mitanni

I am re-reading this and also Mallory's Kuro-Araxes Culture.

How and when did this Indo-Aryan expansion happen? Maybe earlier than 14thcent. BCE? Were they also involved with the metallurgical initiatives of the times together with Meluhhans? Was there any link with Tocharian to explain the concordance Vedic ams'u and Tocharian añzu 'iron' suggested by Georges-Jean Pinault?

Regards, Kalyan