sandhi form: pana + imassa
Analysis. pana (and, moreover) + imassa (of this, about this: demonstrative pronoun ima- in genitive singular). A paratactic connector introducing an afterthought or expansion, common in narrative prose.
Etymology. pana is an emphatic particle cognate with Sanskrit puna (again, moreover); imassa is the genitive of ima (this), from the demonstrative root *i- (also in idaṁ, ayaṁ), cognate with Sanskrit idam and the English pronoun it.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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