A more thorough explanation:

Definition: A certificate into chancery is a decision made by a common-law court in response to a legal question submitted by the chancery court in English law.

Example: Let's say there is a dispute between two parties over the ownership of a piece of land. The chancery court may ask a common-law court to provide a decision on the legal question of who has the rightful claim to the land. The common-law court's decision, known as a certificate into chancery, would then be used by the chancery court to make a final ruling on the case.

This example illustrates how a certificate into chancery is used to resolve legal disputes between parties in English law. It shows that the chancery court may rely on the expertise of a common-law court to provide a decision on a legal question, which is then used to make a final ruling on the case.