ἔκδοτον σεαυτὴν τῷ σύροντι ποταμῷ τῶν πραγμάτων ἐᾶσαι → abandon yourself to the eddying flow of events
neuter of a compound of ἐν and νύξ; (adverbially) by night: before day.
ἔννῠχον: adv. Aesop. = ἔννυχα.