Where does “trigeminous” come from?

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

trigeminous (English): born three together; being one of three born at...

Definitions

  1. born three together; being one of three born at...

Ancestry of “trigeminous”, step by step

StepLanguageWordMeaning
1Latintrigeminusborn three together
2Latintri-three, tri-
3Latintrēsthree; 3
4Proto-Italictrēsthree
5Proto-Indo-European*tréyes
Every word from Proto-Indo-European *tréyesEvery word from Proto-Italic trēsEvery word from Latin trēs
trigeminous — Etymology, Origin & Word History | Etymology Explorer