ABUT'MENT, noun 1. The head or end; that which unites one end of a thing to another; chiefly used to denote the solid pier or mound of earth, stone or timber, which is erected on the bank of a river to support the end of a bridge and connect it with the land. 2. That which abuts or borders on another.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI