Strong's G2888 — κοσμοκράτωρ (noun)
kosmokrator (kos-mok-rat'-ore) n.
1. a world-ruler, an epithet of Satan
[from G2889 and G2902]
KJV: ruler 
Root(s): G2889, G2902 
Hebrew root: κρατέω
Occurrences: 1