Of God, his absolute right to do all things according to his own good pleasure (Dan. 4:25, 35; Romans 9:15-23; 1 Timothy 6:15; Revelation 4:11).

Noah Webster's New International Dictionary of the English Language

(n.) The quality or state of being sovereign, or of being a sovereign; the exercise of, or right to exercise, supreme power; dominion; sway; supremacy; independence; also, that which is sovereign; a sovereign state; as, Italy was formerly divided into many sovereignties.