Where does “tri-” come from?

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

tri- (Latin): three, tri-

Definitions

  1. three, tri-

Ancestry of “tri-”, step by step

tri- traces back through two separate lines of ancestry.

via Latin trēs

StepLanguageWordMeaning
1Latintrēsthree; 3
2Proto-Italictrēsthree
3Proto-Indo-European*tréyes

via Proto-Italic *tri-

StepLanguageWordMeaning
1Proto-Italic*tri-three, tri

Words derived from “tri-

Every word from Proto-Indo-European *tréyes