feminine noun, accusative singular (katthūpapatti)
Analysis. ka-attha-upa-patti: ka 'what' + attha 'substance, matter' + upa 'close-up, taking near' + patti 'arrival, obtaining'; the compound denotes arrival at or obtaining of a fleshy mass—the spontaneous formation of sentient life in the lowest realms without gradual gestation.
Etymology. From upa (approaching, taking close) + patti (from √pad 'to go, arrive'). Upa-patti is the standard Buddhist term for 'rebirth, conception'; here modified by kattha-attha ('lump of matter') to specify the most primitive form of rebirth. The prefix upa carries the sense of 'taking up close' (as fuel taken up by fire in upādāna 'clinging'); patti means the 'arriving at' or 'obtaining of' a new existence.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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