Where does “diwydrwydd” come from?

diwydrwydd (Welsh) comes from Welsh diwyd, from Middle Welsh gwyð, from Proto-Brythonic *gwuɨð, from Proto-Celtic *weidus, from Proto-Indo-European h₁weydʰh₁-, from Proto-Indo-European dwi-, from Proto-Indo-European dwóh₁ — two.

diwydrwydd (Welsh): diligence, assiduity

Definitions

  1. diligence, assiduity

Ancestry of “diwydrwydd”, step by step

StepLanguageWordMeaning
1Welshdiwyddiligent, assiduous
2Middle Welshgwyð
3Proto-Brythonic*gwuɨðappearance, presence, face, sight, image
4Proto-Celtic*weiduswild
5Proto-Indo-Europeanh₁weydʰh₁-to separate, divide
6Proto-Indo-Europeandwi-two; apart, asunder
7Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European dwóh₁