accusative singular neuter of the compound dīgha-ratta (literally "long night"); used adverbially as "for a long time"
Analysis. dīgha (long) + ratta (night); the concrete image of a long night metaphorically extends to any extended duration.
Etymology. dīgha derives from Proto-Indo-European *denh₂- (extend, long), cognate with Latin longus and English long via Old English. Ratta (night) is cognate with Sanskrit rātra, from a root meaning darkness.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version