The definition of a buttress is a support for a building usually made of brick or stone.(noun)
A stone wall built against a wall to support the building is an example of a buttress.
To buttress is to provide support for a building, or to provide support and justification for an argument or idea.(verb)
See buttress in Webster's New World College Dictionary
Origin: ME boteras < OFr bouterez, pl. of bouteret, flying buttress < buter: see butt
See buttress in American Heritage Dictionary 4
Origin: Middle English buteras
Origin: , from Old French bouterez
Origin: , from bouter, to strike against
Origin: , of Germanic origin; see bhau- in Indo-European roots.
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