1. Docility: This noun directly refers to the quality of being docile.
2. Indoctrinate: This verb means to teach someone a set of beliefs or principles, often in a way that is persuasive or forceful.
3. Doctrine: This noun refers to a belief or set of beliefs, especially a set of religious beliefs.
4. Doctor: While not directly related to "docile", it shares the same root, meaning "teacher".
5. Document: This noun refers to a piece of written or printed material that provides information or evidence.
Let me know if you'd like more words!