Disempower (verb)

1. To take away power or authority from; to deprive of power.
2. To weaken or decrease the power of.

Origin:

From dis- ("not, opposite of") + empower ("to give power to").

Examples:

1. The new laws disempowered the citizens.
2. The dictator disempowered the opposition.
3. The company's actions disempowered their employees.
4. The changes in the company's structure disempowered the managers.
5. The new regulations disempowered the small business owners.