Where does “trigeminus” come from?

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

trigeminus (English): trigeminal nerve

Definitions

  1. trigeminal nerve

Ancestry of “trigeminus”, step by step

StepLanguageWordMeaning
1Latintrigeminusborn three together
2Latintri-three, tri-
3Latintrēsthree; 3
4Proto-Italictrēsthree
5Proto-Indo-European*tréyes—
Every word from Proto-Indo-European *tréyes →Every word from Proto-Italic trēs →Every word from Latin trēs →