masc nom sg of paccaya (noun); masc nom sg of paccaya (adj)
Analysis. paṭi + aya; literally "coming back" or "leaning-back", used in dependent origination (paṭiccasamuppāda) to denote a condition that leans back upon or supports an effect.
Etymology. paṭi- (back, against, in return) + aya (from √i "go, come"), originally the concrete image of something leaning back or coming back in response; contrast with English "pathos" (suffering that comes back upon one). The abstract sense "condition" arises from the notion of a preceding factor that returns as a supporting condition.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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