demonstrative pronoun, nominative singular neuter
Etymology. Proto-Indo-European *i-do-m (compare English 'this', German 'dies', Latin 'is' < *id-). The stem i- is a deictic root meaning 'this/here'; the neuter singular ending -aṁ marks it as nominative.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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