διαδείκνῡμι · diadeiknymi — LSJ
show plainly, display, let him be declared
show plainly, Hdt. 2.162, al.; φρόνημα καὶ μέγεθος ἀρετῆς Plu. Sollert. 2.968d: folld. by a relat. clause with ὅτι, Hdt. 7.172, 9.58: also c. part., διαδεξάτω τις βασιλέος κηδόμενος Id. 8.118; δ. τὴν Ἑλλήνων ἀλκὴν ἀπρόσμαχον οὖσαν Plu. Arat. 9:—Med., display, ἐπιμέλειαν BGU 778.6 (ii A. D.):— Pass., διαδεικνύσθω ἐὼν πολέμιος let him be declared the kingʼs enemy, Hdt. 3.72; ἀγαθοὶ διεδείχθησαν Lib. Or. 11.105, cf. Hermog. Inv. 3.4, Aen.Gaz. Thphr. p.56 B.
II it was clear, manifest
sts. intr. in forms διέδεξε and ὡς διέδεξε, it was clear, manifest, Hdt. 2.134, 3.82.