Where does “feiceálaí” come from?

feiceálaí (Irish) comes from Irish feiceálach, from Irish feiceáil, from Irish feic, from Old Irish ·aicci, from Old Irish ad·cí, from Proto-Celtic *adkʷiseti, from Proto-Indo-European kʷeys-, from Proto-Indo-European kʷey- — to pay; to avenge.

Ancestry of “feiceálaí”, step by step

StepLanguageWordMeaning
1Irishfeiceálachconspicuous
2Irishfeiceáilvisibility, discernment, sight
3Irishfeicsight, spectacle; see
4Old Irish·aiccisees
5Old Irishad·císee; sees, notices, observes; perceives,...
6Proto-Celtic*adkʷisetito see
7Proto-Indo-Europeankʷeys-to see; to heed
8Proto-Indo-Europeankʷey-to pay; to avenge
Every word from Proto-Indo-European kʷey-Every word from Proto-Indo-European kʷeys-Every word from Proto-Celtic *adkʷiseti