Bourtree, the elder tree or shrub.
Braggin, boasting.
Braken, the female fern (pterisaquilina, Linn.)
Bree, the eyebrow.
Brochin, oatmeal boiled in water till somewhat thicker than gruel.
Brogues, shoes made of sheepskin.
Bught, a pen for sheep.
Burn, a stream.
Buskit, dressed tidily.
Buss, a bush.