Butment
Pronunciation : But"ment
Part of Speech : n.
Etymology : [Abbreviation of Abutment.]
Definition : 1. (Arch.)
Defn: A buttress of an arch; the supporter, or that part which joins it to the upright pier.
2. (Masonry)
Defn: The mass of stone or solid work at the end of a bridge, by which the extreme arches are sustained, or by which the end of a bridge without arches is supported. Butment cheek (Carp.), the part of a mortised timber surrounding the mortise, and against which the shoulders of the tenon bear. Knight.
Source : Webster's Unabridged Dictionary, 1913