ἀντιδικέω
From LSJ
ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
English (LSJ)
impf.
A ἠντιδίκουν Lys.6.12, but ἠντεδίκουν (acc. to the best Ms.) D.39.37, 40.18: aor. ἠντεδίκησα Id.47.28:—to be an ἀντίδικος, dispute, go to law, περί τινος X.Mem. 4.4.8; οἱ ἀντιδικοῦντες ἑκάτεροι the parties to a suit, Pl.Lg.948d: abs., of the defendant, ἀντιδικῶν Ar.Nu.776; ἀ. πρός τι or πρός τινα to urge one's suit against .., D.28.17, 41.10, Is.11.9; join issue, ἠντιδίκει ἦ μήν .., c. acc. et inf., Lys.l.c.; oppose, rebut, διαβολαῖς D.41.13; ἀλλήλοις prob. in Thugen.ID. II Pass., to be an object of dispute, Phot.p.147R.