Benefactor (noun)

1. A person who gives money, support, or help to another person or organization.
2. A person who provides financial assistance or support for a cause or project.

Origin:

From latin benefactor, from benefacĕre, to do good.

Examples:

1. The benefactor provided the funds to build a new community center.
2. The university was grateful for the benefactor's generous donations.
3. Many people were helped by the benefactor's charitable work.
4. The benefactor was known for his quiet and anonymous acts of kindness.
5. The school would not have been able to build its new library without the help of a generous benefactor.