DOLCEACQUA

Dolceacqua, the characteristic town of the Nervia Valley, behind Ventimiglia, is known for the Doria castle. Its name, which literally means sweetwater, has nothing to do with water, but with "Dus", a sorceress. In the Celtic language a sorceress is "sagana". The Celtics of what is to-day Doceacqua were Gallic Nervii coming from the banks of german Schelda. In the East they gave the name to the town of Nervii (to-day a part of Genoa) and the West to valley of Nervia. Dolceacqua derives from "Dus-sagana", which became distorted over the centuries in Dussaga, then in Dulsaga, before coming Latinized.
Casalino Pierluigi, 20.07.2013