noun

1. a branch of knowledge or learning
2. 1. training that develops self-control, character, or orderliness and efficiency
   2. strict control to enforce obedience
3. the result of such training or control; specif.,
   1. self-control or orderly conduct
   2. acceptance of or submission to authority and control
4. a system of rules, as for a church or monastic order
5. treatment that corrects or punishes

Etymology: ME < OFr descepline < L disciplina < discipulus: see disciple

transitive verb disciplined -·plined′, disciplining -·plin′·ing

1. to subject to discipline; train; control
2. to punish