Bible Dictionaries
Butment

Webster's Dictionary

(1):

(n.) 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.

(2):

(n.) A buttress of an arch; the supporter, or that part which joins it to the upright pier.

Bibliography Information
Webster, Noah. Entry for 'Butment'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​b/butment.html. 1828.