Where does “ceathrú” come from?

ceathrú (Irish) comes from Old Irish cethramad, from Proto-Celtic kʷetwariyos, from Proto-Indo-European kʷturyós, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

ceathrú (Irish): fourth

Definitions

  1. fourth

Ancestry of “ceathrú”, step by step

StepLanguageWordMeaning
1Old Irishcethramadfourth
2Proto-Celtickʷetwariyosfourth
3Proto-Indo-Europeankʷturyósfourth
4Proto-Indo-Europeankʷetwóresfour
5Proto-Indo-Europeankʷe-and
Every word from Proto-Indo-European kʷe-Every word from Proto-Indo-European kʷetwóresEvery word from Proto-Indo-European kʷturyós