Right to lateral support
Ballentine's Law Dictionary · James A. Ballentine · 1916
Ballentine's Law Dictionary
The right of a land owner to have his soil, either in its natural state, or, in certain cases, with the additional weight of the buildings or other structures thereon, sustained by the soil of the adjoining proprietors, or in a more special sense, his right to have those buildings or structures sustained by adjacent buildings or structures upon which they lean.
See 33 Am. St. Rep. 446, note.