Strong’s Greek
G748 — archieratikos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀρχιερατικός
archieratikos — pronounced ar-khee-er-at-ee-kos'
from 746 and a derivative of 2413; high-priestly:--of the high-priest. see GREEK for 746 see GREEK for 2413
1 occurrence in the KJV.
Acts 4:6
And Annas the high priest, and Caiaphas, and John, and Alexander, and as many as were of the kindred of the high priest, were gathered together at Jerusalem.