sentences:  Welsh "maes" 'field', Old Irish "mag" 'plain'), as are those of several gods worshipped in their territory, including Nemetona, who is thought to have been their eponymous deity.Both of these names are taken to be derivations from the Celtic stem "nemeto-" "sacred grove".In "De Bello Gallico", Caesar writes that the Hercynian Forest "begins at the frontiers of the Helvetii, Nemetes, and Rauraci, and extends in a right line along the river Danube to the territories of the Daci and the Anartes".