Where does “faolchú” come from?

faolchú (Irish) comes from Irish faol, from Middle Irish fáel, from Proto-Celtic *wailos, from Proto-Indo-European waylos, from Proto-Indo-European wáy, from Proto-Indo-European uwáy — to see oneself.

faolchú (Irish): wild dog; wolf

Definitions

  1. wild dog; wolf

Ancestry of “faolchú”, step by step

faolchú traces back through two separate lines of ancestry.

via Irish faol

StepLanguageWordMeaning
1Irishfaolwolf
2Middle Irishfáelwolf
3Proto-Celtic*wailospoor, wretched
4Proto-Indo-Europeanwayloswolf; howler
5Proto-Indo-Europeanwáyoh!; ah!; woe!
6Proto-Indo-Europeanuwáyto see oneself

via Irish cú

StepLanguageWordMeaning
1Irishcúhound, greyhound; hero, champion
2Old Irishcúdog, hound; wolf
3Primitive Irishᚉᚒᚅᚐhound, wolf
4Proto-Celtickūdog; wolf
5Proto-Indo-Europeanḱwṓdog
Every word from Proto-Indo-European uwáy →Every word from Proto-Indo-European wáy →Every word from Proto-Indo-European waylos →