Abuttal

noun

1. That part of a piece of land which abuts on or is contiguous to another; a boundary; a line of contact: used mostly in the plural.
2. The fact of abutting or of lying contiguous: as, the abuttal of the land on a highway.
3. The butting or boundary of land, particularly at the end; a headland.
4. The act of abutting.