Where does “llwydlas” come from?

llwydlas (Welsh) comes from Welsh glas, from English glass, from Scottish Gaelic glas, from Middle Irish glas, from Old Irish glas, from Proto-Celtic glastos, from Proto-Indo-European ǵʰl̥h₃stós, from Proto-Indo-European ǵʰelh₃- — to flourish; green, yellow.

llwydlas (Welsh): greyish blue, slate

Definitions

  1. greyish blue, slate

Ancestry of “llwydlas”, step by step

llwydlas traces back through two separate lines of ancestry.

via Welsh glas

StepLanguageWordMeaning
1Welshglasblue
2EnglishglassAn amorphous solid, often transparent substance...
3Scottish Gaelicglasgreen; grey; lock
4Middle Irishglas
5Old Irishglasgreen, greenish; blue, green-blue, grey-blue; the...
6Proto-Celticglastosgreen, blue
7Proto-Indo-Europeanǵʰl̥h₃stós
8Proto-Indo-Europeanǵʰelh₃-to flourish; green, yellow

via Welsh llwyd

StepLanguageWordMeaning
1Welshllwydgray
2Proto-Brythoniclluɨdgrey
3Proto-Celtic*ɸleitosgrey
4Proto-Indo-Europeanpelh-pale, gray
Every word from Proto-Indo-European ǵʰelh₃-