Where does “dewweder” come from?

dewweder (Cornish) comes from Cornish gweder, from Proto-Brythonic gwɨdr, from Latin vitrum, from Proto-Italic wedrom, from Proto-Indo-European wedro-, from Proto-Indo-European wed-, from Proto-Indo-European wey- — to wither; fade; to move, go ahead; to be strong;...

dewweder (Cornish): glasses, spectacles

Definitions

  1. glasses, spectacles

Ancestry of “dewweder”, step by step

dewweder traces back through two separate lines of ancestry.

via Cornish gweder

StepLanguageWordMeaning
1Cornishgwederglass
2Proto-Brythonicgwɨdrglass
3Latinvitrumglass; a woad; a plant used for dying blue; woad;...
4Proto-Italicwedromglass
5Proto-Indo-Europeanwedro-water-like
6Proto-Indo-Europeanwed-water
7Proto-Indo-Europeanwey-to wither; fade; to move, go ahead; to be strong;...

via Cornish dew

StepLanguageWordMeaning
1Cornishdewtwo
2Proto-Brythonic*dowtwo
3Proto-Celtic*duwotwo
4Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European wey-