from Avestan ahura- "spirit, lord," from Indo-Iranian *asuras, from suffixed form of PIE root *ansu- "spirit" (see Asgard) + Avestan mazda- "wise," from PIE *mens-dhe- "to set the mind," from root *men- "to think" (see mind (n.)).[Ahura Mazda etymology, Ahura Mazda origin, 英语词源]