neuter singular accusative
Analysis. adinna (not given) + ādāna (taking): the compound term means 'the taking of what has not been given', a fundamental breach of the precept against theft.
Etymology. a- (not, without) + dinna (given, past participle of deti 'gives', from √dā). The prefix negates the notion of freely given property; Sanskrit equivalent is adattādāna. The morphology parallels the canonical term for the second precept.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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