Strong’s Greek
G2715 — katexousiazo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
κατεξουσιάζω
katexousiazo — pronounced kat-ex-oo-see-ad'-zo
from 2596 and 1850; to have (wield) full privilege over:--exercise authority. see GREEK for 2596 see GREEK for 1850
2 occurrences in the KJV.
Matthew 20:25
But Jesus called them unto him, and said, Ye know that the princes of the Gentiles exercise dominion over them, and they that are great exercise authority upon them.
Mark 10:42
But Jesus called them to him, and saith unto them, Ye know that they which are accounted to rule over the Gentiles exercise lordship over them; and their great ones exercise authority upon them.