corroboration
n. uncountablen. proof or support for a story or a piece of evidence. You use this when you want to show that what someone says is true because there is more than one source of information.
n. the act of providing evidence that supports or confirms a statement, theory, or finding. Often used in legal or scientific contexts to describe the strengthening of a claim through independent data.
The witness provided corroboration for the suspect's alibi.
The discovery of the ancient coins provided the necessary corroboration for the historian's theory about the city's trade routes.
While the initial data suggested a correlation, the study lacked the statistical corroboration required by the peer review board to be published in a high-impact journal.
From Middle English corroboracioun, borrowed from Late Latin corrōborātiō (“strengthening”).