Bordure, Her. A border to a shield.

Boreasmos, Gr. A festival held at Athens in honour of Boreas, the god of the north wind.

Borto or Burdo, Med. Lat. A lance.

Boss. The centre of a shield; also an architectural ornament for ceilings, put where the ribs of a vault meet, or in other situations.

Fig. 92. Greek Bossage.

Fig. 93. Bossage.

Bossage, Arch. An arrangement of plain or ornamental projections on the surface of a wall of dressed masonry. Figs. 92 and 93 represent two Greek walls finished in this manner.

Boston, O. E. A flower so called.