everything
From LSJ
οἵτινες πόλιν μίαν λαβόντες εὐρυπρωκτότεροι πολύ τῆς πόλεος ἀπεχώρησαν ἧς εἷλον τότε → after taking a single city they returned home, with arses much wider than the city they captured
English > Greek (Woodhouse)
substantive
euboea, now that Attica was cut off, was everything to them: P. Εὔβοια αὐτοῖς ἀποκεκλῃμένης τῆς Ἀττικῆς πάντα ἦν (Thuc. 8, 95; of also Dem. 240).