μετριάζειν

From LSJ

γνοίης ὅσσον ὄνων κρέσσονες ἡμίονοι → you know how much better are donkeys from mules

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.