Quasi easement
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
An "easement," in the proper sense of the word, can only exist in respect of two adjoining pieces of land occupied by different persons, and can only impose a negative duty on the owner of the servient tenement. Hence an obligation on the owner of land to repair the fence between his and his neighbor's land is not a true easement, but is sometimes called a "quasi easement."
Gale, Easem. 516; Sweet.