διασαφεῖν

From LSJ

ὕπνος δεινὸν ἀνθρώποις κακόνsleep is a terrible evil for humans (Menander, Sententiae monostichoi 1.523)

Source

Greek > English (Woodhouse Verbs Reversed)

(see also διασαφέω): make clear, make plain, shed light on