Where does “thriddo” come from?

thriddo (Old Dutch) comes from Proto-Germanic þridjô, from Proto-Indo-European tretyós, from Proto-Indo-European tr̥tyós, from Proto-Indo-European tréyes — three.

Ancestry of “thriddo”, step by step

StepLanguageWordMeaning
1Proto-Germanicþridjôthird
2Proto-Indo-Europeantretyós
3Proto-Indo-Europeantr̥tyósthird
4Proto-Indo-Europeantréyesthree

Words derived from “thriddo

Every word from Proto-Indo-European tréyesEvery word from Proto-Indo-European tr̥tyósEvery word from Proto-Indo-European tretyós