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
εὔπρεπτος, -ον (Α)επιφανής, ένδοξος.[ΕΤΥΜΟΛ. < ευ + πρεπτός (< πρέπω)].