neuter nominative/accusative singular (or indeclinable)
Analysis. yad + atīta: yad = 'whatever' (relative pronoun), atīta = ati + ita, 'gone beyond', hence 'past'. Compound means 'whatever has transcended (time)', i.e., things no longer present.
Etymology. ati (beyond, over) + √i (go, pass): the prefix ati expresses excess or transcendence of a limit — here, passing beyond the present moment into the unreachable past. Cognate to English 'ite' (Latin -itus, past participle).
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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