indeclinable (adverb) formed from adjective + emphasis particle
Analysis. pubbe (locative singular of pubba "before, previous") + eva (emphasis particle "just, indeed, even") — "even before, right from before"; a strengthened form of the temporal adverb pubbe.
Etymology. pubba derives from Proto-Indo-European *per- "forward, through" (the sense "before" emerges as "what comes forward first in time"); cognate with English "fore", German "vor", and Latin "prae". The particle eva is an emphatic enclitic with no close European cognate but cognate with Sanskrit eva.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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