Zam - Zoroastrian divinity of the Earth

"Zam (Zām) 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 prototyped 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. - Wikipedia"