disempower

verb3

1. •
   To strip power from (someone or some group).
2. •
   To remove authority or (official) confidence from (someone or some group) to do something (such as administer a state function), as by demoting, disestablishing, or unincorporating a group.

   • The reformation disempowered the established church and thus roiled the aristocracy.
3. •
   To remove morale or self-confidence from (someone or some group) to do something.

   • A powerful head can sometimes disempower the teaching staff, and create among them a sort of passivity that is close to inertia. — 1990