Discipline is action or inaction that is regulated to be in accordance with a particular system of governance. Discipline is commonly applied to regulating human and animal behavior to its society or environment it belongs, while self discipline is the ability to control one's feelings and overcome one's weaknesses; the ability to pursue what one thinks is right despite temptations to abandon it.
Discipline is a moral obligation among many groups of people. Disciplined behavior is required by some laws and other legal obligations.
Commercial entities can also put in place strict disciplinary requirements for the length of the commercial agreement.
Airlines enforce strict disciplinary and conduct rules upon flight passengers, Etcetera.
<em>Al</em> is a suffix that is used to indicate that something is "of the kind of" or that it has "the character of" something else. In other words, it indicates that the word with suffix is related to the one without it by being of a similar kind. Common examples of this use are terms such as "seasonal" (related to seasons) and "natural" (related to nature).