LEX

‖Lex (lĕks), n.; pl. Leges (lē″jēz). [[L. See Legal.]] 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.