glārĕa, ae, f.,
gravel (cf. arena, sabulum, suburra, rudus): eo loco pulvis, non glarea injecta est, Cic. Q. Fr. 3, 2, 2, § 4; Varr. R. R. 1, 9, 2: vias glareā substruendas locaverunt, Liv. 41, 27, 5; Col. 4, 22, 8; Tib. 1, 7, 59; Verg. G. 2, 212; Vitr. 2, 4, 2; Vulg. Job, 30, 6.