Where does “trithorium” come from?

trithorium (English) comes from English thorium, from English -ium, from Latin -um, from Proto-Italic *-om, from Proto-Indo-European *-oHom.

trithorium (English): Three thorium atoms or cations in a molecule (Th3)

Definitions

  1. Three thorium atoms or cations in a molecule (Th3)

Ancestry of “trithorium”, step by step

trithorium traces back through two separate lines of ancestry.

via English thorium

StepLanguageWordMeaning
1EnglishthoriumA chemical element with atomic number 90: a...
2English-ium1997, Bryan Pfaffenberger, "Official Microsoft...
3Latin-umnominative neuter singular of -us; accusative...
4Proto-Italic*-om—
5Proto-Indo-European*-oHom—

via English tri

StepLanguageWordMeaning
1Englishtritriathlon; triangle
2Proto-Indo-Europeantréyesthree
Every word from Proto-Indo-European *-oHom →