Strong’s Greek
G757 — archo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἄρχω
archo — pronounced ar'-kho
a primary verb; to be first (in political rank or power):--reign (rule) over.
2 occurrences in the KJV.
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.
Romans 15:12
And again, Esaias saith, There shall be a root of Jesse, and he that shall rise to reign over the Gentiles; in him shall the Gentiles trust.