Where does “cegidwydd” come from?

cegidwydd (Welsh) comes from Welsh gwŷdd, 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.

cegidwydd (Welsh): Tsguga (Tsuga)

Definitions

  1. Tsguga (Tsuga)

Ancestry of “cegidwydd”, step by step

cegidwydd traces back through two separate lines of ancestry.

via Welsh gwŷdd

StepLanguageWordMeaning
1Welshgwŷddloom; trees; plough
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

via Welsh cegid

StepLanguageWordMeaning
1Welshcegidhemlock, (Conium spp.), especially poison hemlock (Conium maculatum)
Every word from Proto-Indo-European dwóh₁