Demeta Save DMLBS Demeta , (pl.) inhabitants of Dyfed (S. Wales). b (p. ppl., by conf. w. dimetiri) measured. ~arum tyranne Vortipori Gildas EB 31; 680 ultra Sabrinae fluminis fretum Demetarum sacerdotes Aldh. Ep. 4. b 9‥ ~arum, ametenra WW 4.