indeclinable (adverb/relative)
Analysis. Relative adverb formed from ya- (relative pronoun stem) + -ttha (locative suffix); used to introduce relative clauses with locative or temporal sense.
Etymology. From ya- (relative pronoun, cognate with Latin qui, English who) + instrumental/locative suffix -ttha (related to Sanskrit -tra, -tha, the latter cognate with English there, German da). The stem ya- derives from Indo-European *yo-, the source of all relative and interrogative pronouns across Indo-European languages.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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