εὐθυδίκαι
From LSJ
εἰς δὲ θεοὺς ἀσεβείας τε καὶ εὐσεβείας καὶ γονέας καὶ αὐτόχειρος φόνου μείζους ἔτι τοὺς μισθοὺς διηγεῖτο → and he had still greater requitals to tell of piety and impiety towards the gods and parents and of self-slaughter
English (LSJ)
[ῐ], in plural, A = εὐθύδικοι, of the Eumenides, A.Eu.312 (lyr., s. v.l., -δίκαιοι Herm.; cf. ὀρθοδίκαιος).