Rakhsh: horse entrusted from Garshasp to Rostam

In this article, by analyzing the text and using a comparative method, the similarities between Rostam and Gershasep are examined from the point of view of the physical characteristics of the horses of those two. After receiving the title of world heroism, Rostam stands against Afrasiab who has sent a large army to invade Iran. But in order to stand against the Turanians and set foot on the battlefield, he wants two things from Zal: one is a mace and the other is a horse. First, Zāl gives the mace of Garshasp- his great grandfather-to Rostam and then, by gathering many herds of horses, provides the conditions for Rostam to choose a suitable horse. Rostam chooses a slim waist horse from various horses. Regarding to the meaning of Garshasp's name and also attending to many similarities between him and Rostam, such as: being born from mother's side, being similar in dealing with fire, falling into a holl, a similar battle with Akvān and Gandarva, etc. it is hypothesized that Garshasp, who means the owner of a thin horse, in addition to his mace, gives his slender horse to Rostam as well. So, Rakhsh can be a reflection of the part "Kres" or "Kresh" in the name "Garshasp" which means lean horse.