accusative singular masculine, compound substantive (nominal sandhi evaṁ + mahānubhāva)
Analysis. evaṁ 'such, thus' + mahānubhāva 'great power, majesty' (mahā 'great' + anubhāva 'power, potency, manifestation'). The phrase emphasizes the exceptional or supreme nature of a quality or display of power, used in narrative to mark a climactic moment or dignified presence.
Etymology. evaṁ is the instrumental form of etad 'this', functioning as an invariant particle (cognate with English 'even'); mahā is from PIE *meg- 'great' (English 'much', 'mighty'), and anubhāva combines anu- 'along' with bhāva 'becoming, manifestation', so literally 'what manifests throughout'.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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