suggrundium

sug-grunda ( subg- ), ae, f. [cf. grando; Sanscr. hrāduni, storm; Gr. chalaza, hail], the lower border of a roof, the eaves, Varr. R. R. 3, 3, 5; Vitr. 10, 21; Dig. 9, 3, 5, § 6; 50, 16, 242, § 1.—Called also sug-grundium, Vitr. 2, 9, 16; Plin. 25, 13, 102, § 160; and suggrundātio, Vitr. 4, 2.