3rd person plural present indicative middle voice, contracted form uppajjantiyadi (uppajjanti + adi 'and so on')
Analysis. ud- (up, out) + pajjati (becomes, arises); the prefix ud- gives the sense of arising upward and coming forth into manifestation. The contraction joins uppajjanti (they arise) with adi (et cetera, and so on).
Etymology. ud- (up, out; cognate with English 'out', German 'aus') + pajjati from √pad (to go, become; cognate with Latin 'padere' and English 'path'). The concrete spatial sense—things springing up and emerging—applies throughout Buddhist philosophy to the arising of phenomena (dhammā) and mental states.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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