Where does “radiothorium” come from?
radiothorium (English) comes from English thorium, from English -ium, from Latin -um, from Proto-Italic *-om, from Proto-Indo-European *-oHom.
radiothorium (English): The radioactive isotope thorium-228
Definitions
- The radioactive isotope thorium-228
Ancestry of “radiothorium”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | thorium | A chemical element with atomic number 90: a... |
| 2 | English | -ium | 1997, Bryan Pfaffenberger, "Official Microsoft... |
| 3 | Latin | -um | nominative neuter singular of -us; accusative... |
| 4 | Proto-Italic | *-om | — |
| 5 | Proto-Indo-European | *-oHom | — |