secundum leges; legibus constitutus (according to law, fixed by law): legitimus (lawful; also, of or relating to law; e.g., a legal impediment, legitimus impedimentum, Cic.; legal authorily, imperium, potestas, etc., Cic.): to institute legal proceedings against anybody; Vid: “to go to LAW with”: anything is not legal, aliquid leges vetant (Cic.).