Where does “خرگوش” come from?

خرگوش (Classical Persian) comes from Middle Persian 𐭤𐭫𐭢𐭥𐭱, from Old Persian *xaragaušah.

Ancestry of “خرگوش”, step by step

Step	Language	Word	Meaning
1	Middle Persian	𐭤𐭫𐭢𐭥𐭱	rabbit, hare; rabbit, hare, lit. 'big ear'
2	Old Persian	*xaragaušah	—

خرگوش — Etymology, Origin & Word History | Etymology Explorer