particle expressing a hesitant or deliberative mood; here with first-person pronoun ahaṁ (nominative singular) — 'I wonder if...', 'I wish that...'
Analysis. yannū is a particle of wish or deliberation, often appearing at the start of a clause; ahaṁ is the nominative singular pronoun 'I'. The form yannūnāhaṁ contracts these two elements phonetically (yannū-na-ahaṁ with sandhi assimilation).
Etymology. yannū is an old deliberative particle of uncertain ultimate origin, expressing hesitation, wish, or counterfactual desire. It appears in the earliest Pali texts and often introduces an optative or potential clause.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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