"That which is appropriate..."
(HavHas)Rule adjustment is called ‘dĕcōrum’, ‘ornamentum’, ‘aptum’, and in Greek ‘πρέπον’, in French ‘bienséance’ and in German ‘das Angemessene’, i.e. ‘that which is appropriate’.
πρέπον: aquello que es apropiado / dĕcōrum: apropiado, decente, justo, etc