Over time, the meaning of "disciplina" evolved to include the concept of orderly conduct and self-control. This is where we get the modern meaning of "discipline" as a way of controlling one's behavior and thoughts.
Here's a breakdown of its journey:
* Latin: *disciplina* (teaching, learning)
* Middle English: *discipline* (teaching, training, orderly conduct)
* Modern English: *discipline* (orderly conduct, self-control, training)
So, the word "discipline" started as a term for education and instruction, and gradually shifted to encompass the concepts of self-control and order.