 In Sassanid Era Zoroastrian tradition, Amerdad appears as Middle Persian 𐭠𐭬𐭥𐭫𐭣𐭠𐭣 "Amurdad", continuing in New Persian as مرداد "Mordad" or "Amordad".It is followed by Shehrevar.Like the other Amesha Spentas also, Ameretat is already attested in the Gathas, the oldest texts of the Zoroastrianism and considered to have been composed by Zoroaster himself.