Where does “treise” come from?

treise (Old Irish) comes from Old Irish trí, from Proto-Celtic trīs, from Proto-Indo-European *tréyes.

treise (Old Irish): triduum, period of three days

Definitions

  1. triduum, period of three days

Ancestry of “treise”, step by step

StepLanguageWordMeaning
1Old Irishtríthree
2Proto-Celtictrīsthree
3Proto-Indo-European*tréyes—
Every word from Proto-Indo-European *tréyes →Every word from Proto-Celtic trīs →Every word from Old Irish trí →