Where does “ceathrachadú” come from?

ceathrachadú (Irish) comes from Irish ceathracha, from Old Irish cethorcho, from Proto-Celtic *kʷetrVkonts, from Proto-Indo-European kʷétwr̥dḱomt, from Proto-Indo-European kʷetwr̥-, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

ceathrachadú (Irish): fortieth

Definitions

  1. fortieth

Ancestry of “ceathrachadú”, step by step

StepLanguageWordMeaning
1Irishceathracha
2Old Irishcethorchoforty
3Proto-Celtic*kʷetrVkontsforty (40)
4Proto-Indo-Europeankʷétwr̥dḱomtforty
5Proto-Indo-Europeankʷetwr̥-four, fourfold
6Proto-Indo-Europeankʷetwóresfour
7Proto-Indo-Europeankʷe-and
Every word from Proto-Indo-European kʷe-Every word from Proto-Indo-European kʷetwóresEvery word from Proto-Indo-European kʷetwr̥-