FromMiddle Bretonloet,loüet, fromOld Bretonloit, fromProto-Brythonic*lluɨd, fromProto-Celtic*ɸleitos. Cognate withCornishloos,Irish andScottish Gaelicliath,Manxlheeah, andWelshllwyd.
louet (comparativelouetoc'h,superlativelouetañ,exclamativelouetat)
| gwenn | louet | du |
| ruz | orañjez,melen-ruz;gell | melen |
| gwer,glas | ||
| cyan | glas | |
| magenta;glasruz | roz |