L. Capricornus "horned like a goat," from caper "goat" + cornu "horn" (Gk. karnon, Skt. srnga-, Av. sru-, srvâ-, Mid.Pers. sruw, Mod.Pers. soru, P.Gmc. *khurnaz, Ger. Horn, E. horn, PIE *ker- "head, horn, top, summit"), a translation of Gk. Aigokheros, the name of the constellation.
Vahig, Mid.Pers. "goat," the name of the Capricorn sign in Mid.Pers. texts, Mod.Pers. bahi, as mentioned by Biruni in his Athar al-Baqia written around A.D. 1000.