Lewis & Short

hărēnĭfŏdīna (aren-), ae, f. [harena-fodio], a sand-pit (late Lat. for harenaria; s. v. harenarius, III. B.), Dig. 7, 1, 13, § 5; 24, 3, 7; Varr. L. L. 5, § 7 Müll.