Where does “trichromatism” come from?

trichromatism (English) comes from English chromatism, from English ism, from English -ism, from Latin -ismus, from Ancient Greek -ισμός, from Ancient Greek -μός, from Proto-Indo-European -mós — Creates action/result nouns from verb stems.

trichromatism (English): The quality, state, or phenomenon of being...

Definitions

  1. The quality, state, or phenomenon of being...

Ancestry of “trichromatism”, step by step

trichromatism traces back through two separate lines of ancestry.

via English chromatism

StepLanguageWordMeaning
1EnglishchromatismThe state of being coloured; chromatic...
2EnglishismAn ideology, system of thought, or practice that...
3English-ismUsed to form nouns of action or process or result...
4Latin-ismus-ism
5Ancient Greek-ισμόςForms abstract nouns
6Ancient Greek-μόςForms abstract nouns
7Proto-Indo-European-mósCreates action/result nouns from verb stems

via English tri

StepLanguageWordMeaning
1Englishtritriathlon; triangle
2Proto-Indo-Europeantréyesthree
Every word from Proto-Indo-European -mósEvery word from English -ismEvery word from English ism