Where does “trichromic” come from?

trichromic (English) comes from English tri, from Proto-Indo-European tréyes — three.

trichromic (English): Containing three atoms of chromium; Of or...

Definitions

  1. Containing three atoms of chromium; Of or...

Ancestry of “trichromic”, step by step

trichromic traces back through two separate lines of ancestry.

via English tri

StepLanguageWordMeaning
1Englishtritriathlon; triangle
2Proto-Indo-Europeantréyesthree

via English chromic

StepLanguageWordMeaning
1Englishchromicof, relating to, or containing chromium,...
Every word from Proto-Indo-European tréyes →Every word from English tri →