I. Prop., a ground, basis, foundation, a socle, pedestal, base, Plin. 36, 9, 14, § 66; Stat. S. 1, 1, 58: “altaris,” Vulg. Lev. 1, 15.—
II. Transf., an elevated enclosure, a high projection, an edge, brim, brink, border, dam, dike, pier, shore, bank, etc., Cic. Verr. 2, 5, 37, § 97; Varr. R. R. 3, 11, 2; Verg. A. 10, 653; Liv. 27, 18, 6; Curt. 5, 1, 28; Sen. Contr. 3, 17; Vitr. 4, 6, 3 et saep.—
B. Trop.: “omnia tamquam crepidine quādam comprehensione longiore sustinentur,” Cic. Or. 67, 224.