Buttressing -

: Iconic in Gothic cathedrals like Notre Dame de Paris, these arches bridge the gap between an outer pier and the wall, allowing for massive stained-glass windows. 2. Figurative Reinforcement

: To allow for taller buildings and thinner walls without the risk of collapse. buttressing

: You can buttress a claim by citing hard evidence or researched facts. : Iconic in Gothic cathedrals like Notre Dame