κοσμοκράτωρ kosmokrátōr

Meaning

a world-ruler, an epithet of Satan

In the King James Version: ruler

Derivation: from G2889 (κόσμος) and G2902 (κρατέω);

Where it is used

• Ephesians 6:12 For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this world’s darkness, and against the spiritual forces of evil in the heavenly realms.