Easement

Webster's Dictionary of the English Language

·noun That which gives ease, relief, or assistance; convenience; accommodation.

II. Easement ·noun A curved member instead of an abrupt change of direction, as in a baseboard, hand rail, ·etc.

III. Easement ·noun A liberty, privilege, or advantage, which one proprietor has in the estate of another proprietor, distinct from the ownership of the soil, as a way, water course, ·etc. It is a species of what the civil law calls servitude.