δῐκαι-όω · dikai-oō — LSJ
set right, νόμος . . δικαιῶν τὸ βιαιότατον Pi. Fr. 169.3; δικαιωθείς proved, tested, A. l.c.
hold or deem right, claim or demand as a right, c. inf., Hdt. 1.89, 133, Hp. Fract. 31; δεινά με δικαιοῖ δρᾶν S. OT 640, cf. 575; δικαιοῦντες μὴ ἀφαιρεθῆναι αὐτήν Th. 2.41: with inf. omitted, οὕτω δ. (sc. γενέσθαι) Hdt. 9.42; δίκας δ. (sc. γενέσθαι) ib. 93; ὅποι ποτὲ θεὸς δικαιοῖ S. Ph. 781; οὐκ ὀρθῶς δ. Th. 5.26; pronounce judgement, Id. 2.71: c. inf., ἐδικαίωσεν ἀποδοῦναι ἡμᾶς τὸ κεφάλαιον PRyl. 119.14 (i A. D.); consent, δουλεύειν Hdt. 2.172, cf. 6.86; οὐκ ἐδικαίου οὐδένα οἱ ἐσαγγεῖλαι he wou
do a man right or justice: hence,
chastise, punish, Hdt. 1.100:—Pass., Id. 3.29, Pl. Lg. 934b, D.C. Fr. 57.47; pass sentence on, ὑμᾶς αὐτοὺς δικαιώσεσθε Th. 3.40.
Pass., also, have right done one, opp. ἀδικεῖσθαι, Arist. EN 1136a18.
pronounce and treat as righteous, justify, vindicate, LXX Ex. 23.7, Je. 3.11; ἑαυτούς Ev.Luc. 16.15, etc.:—freq. in Pass., ib. 7.35, etc.