Lex /(lĕks)/

Lex

n.

pl. Leges ((lē"jēz))

  1. Law; as, lex talionis, the law of retaliation; lex terræ, the law of the land; lex fori, the law of the forum or court; lex loci, the law of the place; lex mercatoria, the law or custom of merchants.