Where does “gwyliadwrus” come from?

gwyliadwrus (Welsh) comes from Welsh gwyliadwr, from Welsh gwyliad, from Welsh gwylio, from Welsh gŵyl, from Middle Welsh gŵyl, from Proto-Celtic *weilos, from Proto-Indo-European wéy-, from Proto-Indo-European éǵh₂ — I.

gwyliadwrus (Welsh): watchful, vigilant

Definitions

  1. watchful, vigilant

Ancestry of “gwyliadwrus”, step by step

StepLanguageWordMeaning
1Welshgwyliadwrwatcher, watchman
2Welshgwyliad}} watching, guarding
3Welshgwylioto watch; to keep watch over, to observe
4Welshgŵylvigil; holiday, festival, feast; holiday,...
5Middle Welshgŵyl—
6Proto-Celtic*weilosmodest
7Proto-Indo-Europeanwéy-—
8Proto-Indo-Europeanéǵh₂I
Every word from Proto-Indo-European éǵh₂ →Every word from Proto-Indo-European wéy- →Every word from Proto-Celtic *weilos →