Where does “gyddfddu” come from?

gyddfddu (Welsh) comes from Welsh du, from Proto-Brythonic duβ, from Proto-Celtic dubus, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

gyddfddu (Welsh): black-necked, black-throated

Definitions

  1. black-necked, black-throated

Ancestry of “gyddfddu”, step by step

gyddfddu traces back through two separate lines of ancestry.

via Welsh du

StepLanguageWordMeaning
1Welshdublack
2Proto-Brythonicduβblack
3Proto-Celticdubusblack
4Proto-Indo-Europeandʰewbʰ-deep
5Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Welsh gwddf

StepLanguageWordMeaning
1Welshgwddfneck
Every word from Proto-Indo-European dʰewh₂-