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
ἐπικρᾰτητέον: ῥημ. ἐπίθετον τοῦ ἐπικρατῶ, δεῖ ἐπικρατεῖν, τινὸς Κλήμ. Ἀλ. 224.
