dado

dado
    n 1: panel forming the lower part of an interior wall when it is
         finished differently from the rest of the wall [syn:
         {wainscot}, {dado}]
    2: the section of a pedestal between the base and the surbase
    3: a rectangular groove cut into a board so that another piece
       can fit into it
    v 1: provide with a dado; "The owners wanted to dado their
         dining room"
    2: cut a dado into or fit into a dado
    

Dado \Da"do\, n.; pl. {Dadoes}. [It. dado die, cube, pedestal;
   of the same origin as E. die, n. See {Die}, n.] (Arch.)
   (a) That part of a pedestal included between the base and the
       cornice (or surbase); the die. See Illust. of {Column}.
       Hence:
   (b) In any wall, that part of the basement included between
       the base and the base course. See {Base course}, under
       {Base}.
   (c) In interior decoration, the lower part of the wall of an
       apartment when adorned with moldings, or otherwise
       specially decorated. Daedal
    

99 Moby Thesaurus words for "dado":
      baluster, balustrade, banister, base, baseboard, basement, bezel,
      canal, canalize, carve, caryatid, chamfer, channel, chase, chassis,
      chink, chisel, colonnade, column, corrugate, corrugation, crack,
      cranny, crimp, cut, die, dike, ditch, engrave, engraving, flute,
      fluting, foot, footing, footstalk, foundation, frame, furrow, gash,
      goffer, gouge, groove, gully, incise, incision, jack, keel,
      microgroove, mopboard, nadir, newel-post, pedestal, pedicel,
      peduncle, pier, pilaster, pile, piling, pillar, pleat, plinth,
      plow, pole, post, queen-post, rabbet, rifle, rifling, ruck, rut,
      score, scratch, shaft, shoemold, slit, socle, sole, staff, stalk,
      stanchion, stand, standard, stem, streak, stria, striate,
      striation, subbase, sulcation, sulcus, surbase, toe, trench,
      trough, trunk, upright, wainscot, well-worn groove, wrinkle