I. verb — [with obj.] 1. (of a building or an area of land) be next to or have a common boundary with • gardens abutting Great Prescott Street
• [no obj.]
a park abutting on an area of waste land.
2. touch or lean on • masonry may crumble where a roof abuts it.
– origin late Middle English: the sense ‘have a common boundary’ from Anglo-Latin abuttare, from a- (from Latin ad ‘to, at’) + Old French but ‘end’; the sense ‘lean upon’ (late 16th cent.) from Old French abouter, from a- (from Latin ad ‘to, at’) + bouter ‘strike, butt’, of Germanic origin.