1、dis- "apart" + cip- => discip- "grasp intellectually, analyze thoroughly" => 进而引申为: learn.
2、discip- + -le(diminutive) => people that learn.
3、disciple => discipl- + -inary(复合后缀：-ine, -ary).
4、含义：order necessary for instruction, treatment that corrects or punishes, branch of instruction or education, military training, orderly conduct as a result of training.

1. He will now face a disciplinary hearing for having an affair.

他因有外遇而要面临纪律听证会的裁决。

来自柯林斯例句

2. Nearly 100 law firms are being referred to the Solicitors' Disciplinary Tribunal.

近百家律师事务所被送上律师纪律法庭。

来自柯林斯例句

3. He was unhappy that no disciplinary action was being taken.

他对没有任何纪律惩罚而心生不满。

来自柯林斯例句

4. He was dismissed by way of disciplinary punishment.

他被开除以示惩戒.

来自《现代汉英综合大词典》

5. He has promised drastic disciplinary action if they do not mend their ways.

如果他们不改邪归正的话，他保证一定严惩不贷。

来自柯林斯例句