Zam (𐬰𐬆𐬨) is the Avestan language term for the Zoroastrian concept of "earth", in both the sense of land and soil and in the sense of the world. The earth is viewed as a primordial element in Zoroastrian tradition, and represented by a minor divinity, Zam, who is the hypostasis of the "earth". The word itself, changed to Zamin in Modern Persian, is cognate to the Baltic Zemes, Slavic Zem, Greco-Thracian Semele, meaning the planet Earth, as well as soil. The element zam exists with the same meaning in Middle Persian, which is the language of the texts of Zoroastrian tradition. The divinity Zam, however, appears in the later language as Zamyad, which is a contraction of Zam Yazad, i.e. the yazata Zam. Zam of the earth is not related to the Zam of the Shahnameh. That Zam—Zahhak-e-Maar-Doosh (Aži Dahāka in Avestan, Azhdshak in Middle Persian)—is the king of dragons, who slew Jamshid. The element zam is the domain of the Armaiti, the Amesha Spenta of the earth and one of the Ahura Mazda's primordial 'divine sparks' from whom all other creation originates. It is through the earth that Armaiti is immanent. This close identification of the element zam with Armaiti also causes the divinity Zam to paired with Armaiti, to the extent that in some verses Armaiti appears where "earth" is expected. The rare dvandvah expression Zam-Armaiti occurs in Yasht 1.16, 16.6 and 42.3. The Zamyad Yasht, the Avesta's hymn nominally devoted to Zam, has little to do with "earth": The first eight chapters of that hymn simply enumerate geographical landmarks, while the rest of the hymn is in praise of those who possess kavaem khareno "royal glory". These remaining verses begin with the creation of the earth, that is with a verse to Ahura Mazda (chapter 10), and closes with a verse to the Saoshyant (89). In between, it contains verses invoking the Amesha Spenta (15), Mithra (35). Mortals invoked include Yima (31), Thraetaona (36), the Kayanian dynasts (66-72), Zarathushtra (79) and Vishtaspa (84).