sandhi form (tatra + assa)
Analysis. tatra (there, in that place) + assa (optative of atthi, to be). The optative expresses potential or hypothetical existence at the specified location.
Etymology. tatra is a locative pronoun from the root *ta- (that, there); assa is the optative stem of atthi (to be), from PIE *es- (to be), cognate with English is, Latin esse, Greek einai. The optative mood itself derives from the suffix -yā-, expressing wish or potential.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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