Proponent (noun)

A person who supports or advocates for a particular idea, cause, or policy.

Origin:

Derived from the latin word "proponere" meaning "to put forward", a proponent is a person who supports or advocates for a particular idea, cause, or policy.

Examples:

1. The proponent of the bill argued that it would bring much-needed reform to the healthcare system.
2. He is a strong proponent of renewable energy sources.
3. The proponent of the new policy has faced opposition from some members of the community.
4. The proponent of the new law has been working hard to gather support for the bill.
5. Many experts are proponents of the idea that early childhood education is crucial for a child's development.