Sovereign

(sŭv'er-in, 22) (Synop., § 130), a. [O. Eng. soveraine, sovereigne, O. Fr. soverain, soverain, sovrain, N. Fr. souverain, Pr. sobran, Sp. & Pg. soberano, It. sovrano, soprano, Lat. as if superantus, from superus, that is above, upper, higher, from super, above.]

1. Supreme in power; superior to all others; highest in power; chief; independent of, and unlimited by, any other; possessing, or entitled to, original authority or jurisdiction; as, a sovereign prince.
2. Efficacious in the highest degree; effectual; controlling; utmost; highest; predominant. “Such a sovereign influence has this passion upon the regulation of the lives and actions of men.” South.

Sovereign state, a state which administers its own government, and is not dependent upon, or subject to, another power.