Compartment

Chambers's Encyclopaedia, Volume 3: Catarrh to Dion, p. 390

Compartment, a term in use in the Heraldry of Scotland, applied generally to the panel or other ornamental work placed below a shield on which the supporters stand, with which is sometimes intertwined the escrol in which the motto, or a second motto, is placed. Great latitude is allowed as to its form.

Source scan(s): p. 0401