Pharro is the deified Khwarenah — the Iranian God-given royal glory and fortune that descends on the rightful king. On the coins he is a male figure, sometimes winged or flaming, who confers legitimacy on the sovereign.
Domains
royal glory
fortune
divine investiture
Sources
Coins of Kanishka I and Huvishka, reverse legend ΦΑΡΡΟ; Rosenfield (1967)