Asura

Sources record multiple, historically layered accounts rather than a single uniform origin. Linguistically, modern scholarship finds Old Indic asura cognate with Avestan ahura, deriving from Proto-Indo-Iranian *háSura with a sense of 'lord' — an archaic semantic field of powerful lords. In Puranic mythic etiologies one strand explains the name via a-sura ('not sura') tied to the Samudra Manthana narrative (rejection or acceptance of Varuni) as an explanatory folk etymology; certain Buddhist commentarial traditions (e.g., accounts attributed in summaries of Buddhaghosa) describe asuras as a dispossessed group cast down from Mount Sumeru/Trāyastriṃśa, producing a mythic origin of their antagonism to the devas. These variants indicate the term's shift from an older honorific sense toward a socially and morally contested category in later texts.

The supplied material treats Asura chiefly as a social and cosmological category and does not supply consistent, detailed morphological descriptions. Where physicality is implied, they are described as powerful, superhuman demigods or 'titans' in some Buddhist renderings; the sources emphasize their status and capacities more than a stable iconography.

Across sources Asuras are characterized as powerful, often power-seeking superhuman beings capable of both benevolent and malevolent action depending on period and text. Early Vedic usage sometimes applies the term to eminent gods (e.g., Agni, Indra) in the sense of 'lords'; later texts portray rivalries and conflicts with the Devas/Suras and participation in mythic events (for example, Puranic narratives surrounding the Samudra Manthana). In Buddhist contexts the class is rendered as 'titans' or 'demigods' and some commentarial accounts narrate their fall from Trāyastriṃśa. The Bhagavad Gita uses the adjectival/moral form asuri sampad ('demonic qualities') to describe inner vices (greed, pride, cruelty), showing the term's application to psychological traits as well as to a class of beings.