Soma (drink)
2. may have its origins in the Turkic second person pronoun “san/sin” ("thou, you"), specifically in the respectful form “su” found in the modern Uyghur and Kazak languages. In the Turkic group of languages sun and su seem to be interchangeable. Both sun and shuma are clearly shown as plants and associated with the deity Siming in the Nine Songs of the Chinese tradition. A Turkic-Iranian extension via Chin. wu 巫 "priest" is considered.compare W. Eberhard, "Çin Tarihi" on the Zhou origins (original: "Chinas Geschichte" in Bibliotheca Sinica. 1, ZDB-ID 419856-6), Ankara 1947, p.33. translated from German into Turkish by Dr. Hasan Bahar: "Türkistan'ın coğrafi konumu ve ilkçağ kaynaklarına göre tarihi", p. 240. In Turkic languages sun- also means “to hold out, offer, present”.