indeclinable
Ajjuṇho (adverb) [haplology from ajja-juṇho; see juṇhā] this moonlight night Vin I 25; IV 80.
this day; the rest of this day and night
(ind, ind, adv, comp, masc nom sg of ajjuṇha) this moonlit night; this bright night this day, this night Construction: ajja + juṇha + o ajjuṇha + o