indeclinable particle (nominative address form + iti)
Analysis. āvuso (vocative address to a male) + iti (quotative particle 'thus', here marking direct address or emphasis). The form āvusoti represents the vocative āvuso with the enclitic iti, commonly used to mark informal, emphatic, or direct forms of address in dialogue.
Etymology. āvuso itself is of uncertain origin; possibly related to a root meaning 'master' or 'lord', though no secure Indo-European cognate is established. The enclitic iti derives from Indo-European *i-ti (a demonstrative stem 'this'), cognate with Latin is 'this' and English it.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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