Black's Law Dictionary (2nd edition)dictionaries

Jus Gentium

The law of nations. That law which natural reason has estab-llshed among all men is equally observed among all nations, and is called the “law of nations,” as being the law whlch all nations use. Inst 1, 2, 1; Dlg. 1, 1, 9; 1 Bl. Comm. 43; 1 Kent, Comm. 7; Mackeld. Rom. Law, { 125

Source: Black’s Law Dictionary 2nd Ed (1910)