== アヴェスター学において ==
神性の解釈は、倫理的、道徳的、宗教的価値の根本的な革命を反映した起源説であるため、かつてゾロアスター教の研究においてより広く議論された分野の一つであった<ref>Boyce, 1975, p62-64</ref>。
The interpretation of the divinity was once one of the more widely debated fields in Zoroastrian scholarship since the theories of origin reflected a radical revolution in ethical, moral and religious values.{{sfn|Boyce|1975|p=62-64}}
Primarily because the Avestan adjective ''verethragnan'' ('victorious') had a corresponding Vedic term ''vrtrahan'' where it appeared "preponderantly [as] a qualification of Indra", Zoroastrians and Hindus accept that {{sfn|Benveniste|Renou|1934}}{{page needed|date=July 2017}} in Indo-Iranian times there existed the warrior god ''Indra'' and that Avestan ''Verethragna'' might be analogous to that divine figure. The Sanskrit cognate of Verethragna is Vritraghna, which is an epithet for [[Indra]] in Vedic literature, and he too is the destroyer of "[[Vritra]]", an Asura whose name literally means obstacle.