pronoun; sandhi form etaṃ + api = etampi, meaning 'just this' or 'this alone'
Analysis. etaṃ (acc. sg. neut. of eta 'this') + api ('also', 'even', 'just') in sandhi: the accusative direct object 'this' + the particle of emphasis or addition 'even/also', yielding 'this even' or 'this just', used to stress exclusivity or a single point.
Etymology. eta is the proximal demonstrative pronoun, cognate with Sanskrit etá- and ultimately from an Indo-European deictic *e-to- ('that [one]'). The particle api ('even', 'also') is cognate with Sanskrit api and Greek ἀπό (apó) in the sense of 'off/from' used as an intensifier; in etampi the particle adds emphasis or exclusivity to the demonstrative.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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