Vine's Expository Dictionary: View Entry
TDNT Reference: 3:1098,486
κατακυριεύω katakyrieúō, kat-ak-oo-ree-yoo'-o; from G2596 and G2961; to lord against, i.e. control, subjugate:—exercise dominion over (lordship), be lord over, overcome.
The KJV translates Strong's G2634 in the following manner: exercise dominion over (1x), overcome (1x), be lord over (1x), exercise lordship over (1x).
to bring under one's power, to subject one's self, to subdue, master
to hold in subjection, to be master of, exercise lordship over
Strong's Number G2634 matches the Greek κατακυριεύω (katakyrieuō),
which occurs 4 times in 4 verses
in the TR Greek.