ἐπαληθεύειν
From LSJ
Τύχη τέχνην ὤρθωσεν, οὐ τέχνη τύχην → Artem fortuna, non ars fortunam erigit → Das Glück erhöht die Kunst und nicht die Kunst das Glück
Greek > English (Woodhouse Verbs Reversed)
(see also ἐπαληθεύω): verify, establish the truth of
Lexicon Thucydideum
verum declarare, confirmare, to declare the truth, prove, 4.85.1, 8.52.1.