3rd person singular optative + iti (quoted clause)
Analysis. passasissāmi (3rd sg. optative of passasati) + iti (quotative particle 'thus, that'). The optative expresses what should or would happen, here embedded in reported speech.
Etymology. From √pass- (breathe forward), itself from pa- (forward, forth) + √as- (breathe). The prefix pa- gives the sense of breathing that goes forth or out. Compare Sanskrit prasvasiti, Greek psukhē (breath, soul), English 'asthma' from Greek asthma (short of breath). The root √as- is ancient: Indo-European *h₂enH- (breathe, blow).
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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