Contributor (noun)

1. A person or thing that gives or supplies something, especially money, to a particular cause or organization.
2. A person who writes or creates content for a publication or website.

Origin:

From the latin contributus, meaning "contributed", from contribuere, meaning "to bring together, contribute".

Examples:

1. The contributor was acknowledged for his generous donation.
2. He was a regular contributor to the magazine.
3. The contributor list included many well-known names.
4. She was a major contributor to the success of the project.
5. He was a contributor to the website on a volunteer basis.