Strong’s Greek
G1246 — diakatelegchomai
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
διακατελέγχομαι
diakatelegchomai — pronounced dee-ak-at-el-eng'-khom-ahee
middle voice from 1223 and a compound of 2596 and 1651; to prove downright, i.e. confute:--convince. see GREEK for 1223 see GREEK for 2596 see GREEK for 1651
1 occurrence in the KJV.
Acts 18:28
For he mightily convinced the Jews, and that publickly, shewing by the scriptures that Jesus was Christ.