Final answer:
The merger of the servient tenement with the dominant tenement refers to the extinction of an easement when the same person acquires ownership of both the land burdened by the easement and the land benefiting from it in property law.
Step-by-step explanation:
The merger of a servient tenement with the dominant tenement occurs in property law, specifically in the context of easements. An easement is a legal right to use another person’s land for a specific purpose. The servient tenement is the land over which the easement runs, while the dominant tenement benefits from this easement. When the same person acquires ownership of both tenements, the easement is often extinguished because the owner cannot have an easement over their own property. This concept is important when dealing with property rights and can impact future use or development of the land.