Oaxsho is the divine personification of the Oxus (Amu Darya / Wakhsh), the defining river of Bactria, shown Poseidon-like with the water flowing from him. His great sanctuary stood at Takht-i Sangin, where the Wakhsh meets the Panj.
Domains
the oxus river
water
land fertility
local sovereignty
Sources
Copper coins of Huvishka, reverse legend ΟΑΞϷΟ; the Takht-i Sangin temple of the Oxus