Where does “glastwr” come from?

glastwr (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.

glastwr (Welsh): milk diluted with water

Definitions

  1. milk diluted with water

Ancestry of “glastwr”, step by step

glastwr 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 dŵr

StepLanguageWordMeaning
1Welshdŵrwater; Soft mutation of tŵr
2Middle Welshdwfyrwater
3Proto-Brythonicduβrwater
4Proto-Celticdubrosdark; water
5Proto-Indo-Europeandʰubʰrósdeep
6Proto-Indo-Europeandʰewbʰ-deep
7Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European ǵʰelh₃-
glastwr — Etymology, Origin & Word History | Etymology Explorer