masc dat sg of ya (letter); masc gen sg of ya (letter); masc dat sg of ya (pron); nt dat sg of ya (pron); …
Analysis. ya (relative pronoun stem) + ssa (genitive singular ending, showing possession or relation). The form yassa stands in relative clauses: 'the one whose...' or 'of which...'. It appears frequently in canonical formulas like yassa dukkhā nirodho (the cessation of suffering for/of which).
Etymology. ya is the Indo-European relative pronoun stem (Sanskrit ya-, Greek ho [ὁ], Latin qui, English who). The genitive ending -ssa derives from the Proto-Indo-European *-sya, visible in Sanskrit -sya and Greek -sio. Pali has generalized -ssa across genders and numbers in oblique cases.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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