Constitutionalism (noun)

1. The principles and practice of limiting government authority through the use of a written constitution and the rule of law.
2. The belief in the importance of a written constitution as a safeguard against arbitrary government power.
3. The protection of individual rights and liberties through the constitutional checks and balances of the government.

Origin:

Derived from the word "constitution" and the suffix "-ism" meaning "the act or process of forming or state of being formed".

Examples:

1. The country's shift towards constitutionalism was a major step towards democracy.
2. The movement for constitutionalism gained momentum after the revolution.
3. The constitutionalism limits the power of the government and protects individual rights.
4. The court upheld the constitutionalism principle of separation of powers.
5. The constitutionalism guarantees freedom of speech and press.