Lewis & Short

stătūmen, īnis, n. [statuo],

  1. I. that upon which any thing rests, a support, stay, prop, Col. 4, 2, 1; 4, 16, 2; 5, 5, 18; Vitr. 7, 1, 1; Plin. 13, 12, 24, § 79.
  2. II. Esp., a rib of a ship, Caes. B. C. 1, 54.