1. (v.) to support, hold up (The column buttresses the roof above the statue.)

early 14c., from Old French (arc) botrez "flying buttress," apparently from bouter "to thrust against," of Frankish origin (compare Old Norse bauta "to strike, beat"), fr [..]

late 14c., literal and figurative, from buttress (n.). Related: Buttressed; buttressing.

From the French bouter=to bear against, and used to describe a mass of brick or masonry which resists the outward pressure of a wall, arch or vault.

Also known as root-flare, it's the area of a tree trunk where the roots meet the soil surface; usually styled to convey strength.

n. Any support or prop.

A projecting mass of masonry set at an angle to or bonded into a wall that it strengthens or supports. A buttress decreases in its cross-sectional area form top to base.

[Bole] -- Outgrowths from base of tree extending from lateral surface roots to trunk.

One set on the angle of a building, diagonally to each wall.    (Wood, Margaret. The English Medieval House, 410)

A pair meeting (or nearly) at right angles on the corner of a building.    (Wood, Margaret. The English Medieval House, 410)

Projection from a wall for additional support.    (Wood, Margaret. The English Medieval House, 410)

(n) a support usually of stone or brick; supports the wall of a building(v) make stronger or defensible(v) reinforce with a buttress

The area on a tire between the edge of the tread and the sidewall.

Broadened bottom of a tree trunk that helps to stabilize a tree growing in wet soil or water.

A mass of stone built up to support a wall, usually necessary to strengthen those of great height. See flying buttress.

A projection, usually on the outside of a building and across from a major point of stress. Source: Julia Ehresmann, "The Pocket Dictionary of Art Terms"

(architecture) A brick or stone structure built against another structure to support it. Anything that serves to support something; a prop. (botany) A buttress-root. (climbing) A feature jutti [..]

A large protruding face or area of a crag.