accusative singular neuter of idamāsana (a compound noun)
Analysis. idaṁ (this; neuter accusative of idam) + āsana (seat, from ās- to sit). The compound means 'this seat' or 'that seat', referring to a particular seat, bench, or place to sit.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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