Etymology
Both Soma and the Avestan Haoma are derived from Proto-Indo-Iranian *sauma-. The name of the Scythian tribe Hauma-varga is related to the word, and probably connected with the ritual. The word is derived from an Indo-Iranian root *sav- (Sanskrit sav-) "to press", i.e. *sav-ma- is the drink prepared by pressing the stalks of a plant (cf. es-presso). The root is probably Proto-Indo-European (*sewh-), and also appears in son (from *suhnu-, "pressed out" i.e. "newly born").
Vedic Soma
In the Vedas, Soma is portrayed as sacred and as a god (deva). The god, the drink and the plant probably referred to the same entity, or at least the differentiation was ambiguous. In this aspect, Soma is similar to the Greek ambrosia (cognate to amrita); it is what the gods drink, and what made them deities. Indra and Agni are portrayed as consuming Soma in copious quantities. The consumption of Soma by human beings was probably under the belief that it bestowed divine qualities on them.
