A more thorough explanation:

Definition: Secundum consuetudinem manerii is a Latin legal term that means "according to the custom of the manor."

Example: In medieval England, landowners had certain rights and obligations that were determined by the customs of their manor. For example, the lord of the manor might have the right to hold a court to settle disputes among his tenants, or the tenants might be required to perform certain labor services for the lord. These customs were known as the "consuetudines manerii" and were enforced by the manorial court. When a legal dispute arose, the court would apply the relevant custom "secundum consuetudinem manerii."

Explanation: The example illustrates how the term "secundum consuetudinem manerii" was used in medieval England to refer to the customs and practices of a particular manor. The term was used in legal proceedings to indicate that the court would apply the customary law of the manor to resolve the dispute. This ensured that the rights and obligations of the parties involved were determined according to the established customs of the manor, rather than by arbitrary or unfamiliar rules.