buttress >> /ˈbətrəs/
Definition: [transitive verb] Provide (a building or structure) with projecting supports built against its walls.
Example: we buttressed the wall as it was showing signs of cracking and collapse
Definition: [transitive verb] Increase the strength of or justification for; reinforce.
Example: authority was buttressed by religious belief
Definition: [noun] A projecting support of stone or brick built against a wall.
Example: the cathedral's massive buttresses
Definition: [noun] A source of defense or support.
Example: there was a demand for a new stable order as a buttress against social collapse