Where does “tris” come from?

tris (Old Latin) comes from Proto-Italic trēs, from Proto-Indo-European *tréyes.

Ancestry of “tris”, step by step

StepLanguageWordMeaning
1Proto-Italictrēsthree
2Proto-Indo-European*tréyes—

Words derived from “tris”

Every word from Proto-Indo-European *tréyes →Every word from Proto-Italic trēs →