εὐθύδικος
From LSJ
τὸν αὐτὸν ἔρανον ἀποδοῦναι → pay him back in his own coin, repay him in his own coin, pay someone back in their own coin, pay back in someone's own coin, give tit for tat, pay back in kind
English (LSJ)
ον,
A righteous-judging, B.5.6, A.Ag.761 (lyr.), AP6.346 (Anacr.). II εὐθύδικον, τό, = εὐθυδικία, IG5(2).357.25 (Stymphalus, iii B.C.).
German (Pape)
[Seite 1070] gerad, gerecht richtend, gerecht, Aesch. Ag. 739 οἴκων γὰρ εὐθυδίκων καλλίπαις πότμος ἀεί, auch im fem., εὐθυδίκαι, richtiger εὐθύδικαι, von den Eumeniden, Eum. 502; Anacr. ep. 13 (VI, 346).