Gwyneth
Welsh: feminine form of GWYNEDDgwyn “white, fair, blessed”. Or else possibly “happiness” from Welsh gwynaeth. Sindarin: (snow white, dazzling white) Gloss; m Glossion; fGlossien, Glossiel. (radiant white) Faen; m Faenion; f Faenien, Faeniel. (white, glittering) Silivren; m Silivrenion; f Silivreniel. (fair, beautiful) Bain, m Bainion; f Bainwen, Bainiel. (blessedness) Galu; m Galuön; f Galuëth. (happy) Gelir; m Gelirion, Geliron; f Geliriel, Gelireth. ●