εὐθυδίκαι
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
[ῐ], in plural, A = εὐθύδικοι, of the Eumenides, A.Eu.312 (lyr., s.v.l., -δίκαιοι Herm.; cf. ὀρθοδίκαιος).