Borrowed from Classical Persian تیر (tīr), from Middle Persian 𐭧𐭲𐭩𐭠 (ḥtyʾ) / HTYA / tgl (tigr, tīr), from Old Persian 𐎫𐎡𐎥𐎼 (tigra-). Compare Hindi तीर (tīr).
તીર • (tīr) n