Invoke (verb)

1. To call upon or appeal to (a higher power or authority) for help, support, or inspiration.
2. To cite or appeal to (a law, rule, or precedent) as authority for an action.
3. To call forth or put into effect (a right, power, or privilege).

Origin:

From latin invocare "to call upon".

Examples:

1. The athletes invoked a higher power for strength and guidance.
2. The lawyer invoked the fifth amendment for the client.
3. The company invoked the clause in the contract.
4. The politician invoked the memory of the founding fathers.
5. The teacher invoked the rule of respect.