προσταυροῦν
From LSJ
ἐν δὲ δικαιοσύνῃ συλλήβδην πᾶσ' ἀρετὴ ἔνι → in justice is all virtue found in sum, in justice is every virtue there is, in justice every virtue is brought together, justice contains in itself all the virtues
Lexicon Thucydideum
vallis praemunire, to fortify the rampart in advance, 6.75.1.
