What does abut mean?
The definition of abut
A*but”, v. i.
[imp. & p. p. Abutted; p. pr. & vb. n. Abutting.] Etym: [OF. abouter, aboter; cf. F. aboutir, and also abuter; a (L. ad) + OF. boter, buter, to push: cf. F. bout end, and but end, purpose.]

To project; to terminate or border; to be contiguous; to meet; — with on, upon, or against; as, his land abuts on the road.