[ 'deɪdəʊ ]
■ noun ( plural ~s )
1》 the lower part of the wall of a room, when decorated differently from the upper participle
2》 N. Amer. a groove cut in the face of a board, into which the edge of another board is fixed.
3》 Architecture the cube of a pedestal between the base and the cornice.
Origin
C17: from Ital., lit. 'dice or cube'.