Where does “hircano” come from?

hircano (Spanish) comes from Latin Hyrcānus, from Ancient Greek Ὑρκανός, from Old Persian 𐎺𐎼𐎣𐎠𐎴, from Old Persian 𐎺𐎼𐎣, from Proto-Iranian wŕ̥kah, from Proto-Indo-Iranian wŕ̥kas, from Proto-Indo-European wĺ̥kʷos — wolf.

hircano (Spanish): Hyrcanian