masc nom sg of upakkilesa (noun)
Analysis. upa + kilesa: 'near-defilement', a secondary or lesser defilement; in the Abhidhamma, the subtle corruptions (greed, anger, delusion in minor forms) that cloud the mind even in wholesome states.
Etymology. upa (up close to, alongside) + kilesa (defilement, from √kilis 'to soil'). The prefix upa suggests something accessory or attendant to the main defilement—impurities that accompany or attend upon the primary mental corruptions. Cognate with Sanskrit upakleśa.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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