BOURD, BOURE, s. A jest, a scoff, S.
Kelly.
Houlate.

BOURIE, s. A hole made in the earth by rabbits, or other animals that hide themselves there; E. a burrow.
Monroe.

From the same origin with [Bourach].

BOURTREE, BORETREE, BOUNTREE, s. Common elder, a tree; Sambucus nigra, Linn.; A. Bor. Burtree.
Lightfoot.

It seems to have received its name from its being hollow within, and thence easily bored by thrusting out the pulp.

BOUSHTY, s. Expl. "bed." Aberd.
Shirrefs.

The same with [Buisty], q. v.

BOUSTOUR, BOWSTOWRE, s. A military engine, anciently used for battering walls.
Wyntown.

Su. G. byssa, bossa, signifies a mortar, an engine for throwing bombs; Bombarda, Ihre; formerly byssor; from byssa, theca, a box, or case; because in these tubes, as in cases, bullets are lodged.

BOUSUM, BOWSOM, adj.
1. Pliant, tractable.
Palice Honour.