τὸ δ' ἐξαίφνης τὸ ἐν ἀναισθήτῳ χρόνῳ διὰ μικρότητα ἐκστάν → suddenly refers to what has departed from its former condition in a time imperceptible because of its smallness
nae: vulgar form for nē (v. 3. ne), particle of assurance,
I verily, truly.
næ, forme vulgaire pour nē 1.
