μετριάζειν

From LSJ

εἰς τὸν τετρημένον πίθον ἀντλεῖν → run water into a punctured pitcher, to the perforated jar bale water, labour in vain, labor in vain

Source

Greek > English (Woodhouse Verbs Reversed)

(see also μετριάζω): be moderate, keep within bounds

Lexicon Thucydideum

moderate agere, to act with moderation, 1.76.4.