indeclinable particle with iti; used as a strengthening or emphatic marker
Analysis. kiñci (indefinite pronoun, neuter accusative singular of kaci) + iti (quotative/emphatic particle 'thus, so'), forming a colloquial or emphatic variant of the bare pronoun; the addition of iti gives the phrase an intensifying or quotative force, common in colloquial speech.
Etymology. kaci derives from the PIE *kwo- (who, what), the same root as Latin quis, Greek tís, English who. The form kiñci shows the neuter accusative singular with sandhi: kaci + i > kiñci. iti is from the root √i 'go', literally 'having gone' or 'thus', used as a quotative marker; cognate with English 'it' and the Indo-European demonstrative *i-.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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