What's the noun for abutteth? Here's the word you're looking for.
abutment
The point of junction between two things, in particular a support, that abuts. [First attested in the mid 17th century.]
(engineering, architecture) The solid portion of a structure that supports the lateral pressure of an arch or vault. [First attested in the mid 18th century.]
(engineering) A construction that supports the ends of a bridge; a structure that anchors the cables on a suspension bridge. [First attested in the mid 18th century.]
Something that abuts, or on which something abuts. [First attested in the mid 18th century.]
“An abutter has several opportunities during the Public Hearing process to voice concerns about a given subdivision that may alter the final design or decision.”
“The client comes to the appraiser asking why the appraiser made no mention of the potential for a higher price from the abutter.”
“A temporary pedestrian bridge is proposed to be constructed parallel to the existing structure for the abutter to use during bridge closure.”