"Belonging to or associated with the region of Mount Parthenios in Arcadia (on the southern Greek mainland)", Mid 16th cent.; earliest use found in George Turberville (c1543–c1597), poet and translator. From classical Latin Parthenius of or associated with Mount Parthenios (classical Latin Parthenius) + -an.[Parthenian etymology, Parthenian origin, 英语词源]