Where does “waylos” come from?

waylos (Proto-Celtic) comes from Proto-Indo-European waylos, from Proto-Indo-European wáy, from Proto-Indo-European uwáy — to see oneself.

Ancestry of “waylos”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanwayloswolf; howler
2Proto-Indo-Europeanwáyoh!; ah!; woe!
3Proto-Indo-Europeanuwáyto see oneself
Every word from Proto-Indo-European uwáy →Every word from Proto-Indo-European wáy →Every word from Proto-Indo-European waylos →