Latin iūs gentiumiūslawgentiumgenitive pl. ofgēnsnation
Tables towards the wider, more general and more humane jus gentium.
Both jus naturale and lex naturalis are as early as Cicero, and the jus gentium of the Roman lawyers is earlier still.
It supplied them with an incentive to scientific research in archaeology and grammar; it penetrated jurisprudence until the belief in the ultimate identity of the jus gentium with the law of nature modified the praetor's edicts for centuries.