I. In gen.: qui locus gradibus in quadram formatus est, Fest. s. v. Romanam, p. 262 Müll.—
II. In partic.
A. In arch.
1. The lowest and largest member of the base of a pedestal, the foundation-stone, socle, plinth, Vitr. 3, 3.—
2. Any small member for the separation of larger ones, a platband, list, fillet, Vitr. 3, 3; 10, 2.—
B. A table to eat from, a dining-table (as these were usually square; cf. Varr. L. L. 5, § 118 Müll.): “patulis nec parcere quadris, of the pieces of bread used as plates,” Verg. A. 7, 115.— Hence, alienā vivere quadrā, to live from another's table (as a parasite), Juv. 5, 2. —