buttress

باللغة العربية: دِعَامَة، سَنَد

1. A brick, concrete or stone structure built against another structure to support it.
2. Anything that serves to support something; a prop.
3. A buttress root.
4. A feature jutting prominently out from a mountain or rock. · Crowell Buttresses, Dismal Buttress
5. Anything that supports or strengthens. (figuratively)

الجمع buttresses