hărēnātus (aren-), a, um, adj. [harena],
sanded , covered or mixed with sand (very rare): calx, Cato R. R. 18, 7; Inscr. Grut. 207.—As subst.: hărēnātum , i (sc. opus), n., sand-mortar , Vitr. 7, 4; Plin. 36, 23, 55, § 176 sq.