Lewis & Short

quā̆drum, i, n. [quattuor], something square, a square, quadrate (class.).

  1. I. Lit.: perticae dolantur in quadrum, Col. 8, 3, 7: per quadrum singulos habens cubitos, Vulg. Exod. 37, 25.
  2. II. Transf., a being squared or fitted together, fitness, proper order, arrangement: in quadrum redigere sententias, Cic. Or. 61, 208; 70, 233.