ξυνιέναι
From LSJ
ἰσότης φιλότητα ἀπεργάζεται → equality leads to friendship
French (Bailly abrégé)
ion. et anc. att. c. συνιέναι.
Lexicon Thucydideum
convenire, to come together, agree, 1.3.5, 1.69.2, 1.124.2, 1.141.7, 2.10.2, 2.15.1, 2.17.3, 2.22.1. 3.107.2, 3.111.2. 4.38.1, 4.58.1. 4.119.3. 5.7.2. 5.15.2, 5.55.1, 5.55.2, 5.60.3, 7.56.4, 7.60.2, 8.8.2, 8.72.1, 8.92.2,
conflari, committi, to assemble, to engage in conflict, 5.74.1,
confligere, to fight, to engage in battle, 2.8.1, 4.94.2, 5.59.5, 5.69.1, 5.71.1.
intelligere, to understand, 1.3.4,
qui eadem lingua utebantur, who used the same language.