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
ἐκκυλίω, ἐκκυλίνδω, κυλίνδω, κυλινδέω, κατακυλίω, ἐπικυλινδέω, ἐπικυλίω, ἀνακυλίω