neuter accusative singular of sudubbala (adjective) — possibly a scribal error for su-dubbala 'very weak' or a contraction; most likely a variant or misreading of sudukkhala or similar, but resolving to sudubbala as the most coherent attested form in commentarial usage
Analysis. su- (well, thoroughly, very — intensifying prefix) + dubbala (weak, feeble — from *duh-bala, 'bad strength'). The compound expresses extreme weakness or the quality of being hardly capable of improvement.
Etymology. su- is the common Pali intensive prefix (cognate with Greek eu-, 'good, well'), here used to reinforce dubbala. Dubbala itself derives from a root sense of 'bad' (du-) + 'strength' (bala-, cognate with English 'ball', Latin 'bolus', and Sanskrit 'bala'). The word captures the doctrinal idea of insufficient spiritual vigor or moral weakness.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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