To support something physically with, or as if with, a prop or buttress. / (figuratively, by extension) To support something or someone by supplying evidence.

(architecture) A brick or stone structure built against another structure to support it. / (by extension) Anything that serves to support something; a prop. / (botany) A buttress-root.

plural of buttress

Third-person singular simple present indicative form of buttress

Having buttresses or supports.

simple past tense and past participle of buttress

present participle of buttress

(architecture) A buttress that stands apart from the structure that it supports, and is connected to it by an arch (flyer).

A root growing from the above-ground stem or trunk, and providing support.

plural of flying buttress