εὐθυδίκαι
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 (LSJ)
[ῐ], in plural, A = εὐθύδικοι, of the Eumenides, A.Eu.312 (lyr., s. v. l., -δίκαιοι Herm.; cf. ὀρθοδίκαιος).