In the civil and old English law. Water; sometimes a stream or water course. Aqua sestiva. In Roman law. Summer water; water that was used in summer only Dig. 43, 20, 1, 3, 4 Aqua currens. Running water. Aqua dulcis, or frisca. Fresh water. Reg. Orig. 97; Bract fols. 117, 135. Aqua fontanea. Spring water. Fleta, lib. 4, c. 27,