συμβαίνειν καθ' ὁμολογίαν
Ἢ τὰν ἢ ἐπὶ τᾶς → Either with this or on this | Come back victorious or dead
Plutarch, Moralia 241Greek > English (Woodhouse Phrases Reversed)
συμβαίνειν καθ' ὁμολογίαν = come to terms
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(Translation based on the reversal of Woodhouse's English to Ancient Greek dictionary)