Where does “trei” come from?

trei (Anglo-Norman) comes from Old French treis, from Latin trēs, from Proto-Italic trēs, from Proto-Indo-European *tréyes.

Ancestry of “trei”, step by step

StepLanguageWordMeaning
1Old FrenchtreisAlternative form of trois
2Latintrēsthree; 3
3Proto-Italictrēsthree
4Proto-Indo-European*tréyes—

Words derived from “trei”

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