contraction: na + ayidaṁ (na + aya + idaṁ), with aya as assimilated form of aya (emphatic particle), surface form appears as a single word in some texts; analyze as 'not + emphatic + this'
Analysis. na (negation particle) + ayidaṁ (aya, emphatic particle, + idaṁ, neuter nominative/accusative of idam 'this'). The contraction creates a colloquial emphasis in denial or rejection of something present or just mentioned.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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