If “angry” can be traced back to Greek and Sanskrit cognates, then it wouldn’t be a great leap to assume that Angra in the “Old Persian” language at the time of Zoroaster would also be connected. Thanks for the info!
That said, Rome had trade with India when Julius Caesar was emperor and afterward.
If you follow the language, you can learn a lot of history.
Word etymology will experience a great leap forward (backward?)in the digital age and with honest academics poring over all written accounts of history.
Even the Resurrection of Jesus is now considered a historical fact by many historians and theologians who have studied it from an evidentiary POV (eye witness accounts).