accusative singular masculine of chinnasassara (adjective or noun in nominal composition)
Analysis. chinna (past participle of chinati, 'cut') + sasara (flow, stream; here referring to the round of rebirth, saṃsāra). Literally 'severed stream', a doctrinal term for one who has interrupted rebirth.
Etymology. chinna from √chid 'cut' (English sheath, a covering from Germanic roots; Latin caedere 'to cut'). Sassara is sasara, related to √sar 'flow' (English serum, whey; Sanskrit sāraṇ). The metaphor is of cutting the flow of rebirth itself.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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