Define the term Discipline?

The genesis of the word "Discipline" is supposed from the Latin word "Disciplina" which means management, rule, education, practice, teaching and trained condition. The derivation of English word "Discipline" is supposed from the Latin word "Discipulum" which means pupil. This is expected from the pupils that he should obey his teachers respectfully and according to him, he should develop necessary and required qualities in himself for successful life.