Corroboration (noun)

1. The act or process of providing evidence to support a statement or theory.
2. Something that serves as evidence to support a statement or theory.

Origin:

From the latin word "corroborare" meaning "to strengthen".

Examples:

1. The police needed further corroboration before they could make an arrest.
2. The witness testimony provided corroboration for the prosecution's case.
3. The scientist's findings were supported by other studies, providing corroboration for his theory.
4. The letter provided corroboration of the defendant's alibi.
5. The photograph served as corroboration that the suspect was at the scene of the crime.