Where does “lumen” come from?
Lumen comes from French lumen, from Latin lumen meaning "light," ultimately from Proto-Indo-European lewk- meaning "to shine."
lumen (English): In the International System of Units, the derived...
Definitions
- In the International System of Units, the derived...
Ancestry of “lumen”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Latin | lūmen | light, source of light |
| 2 | English | -escence | a specified process or state |
| 3 | Latin | -escens | — |
| 4 | Latin | -esco | Forms verbs from adjectives meaning "become " |
| 5 | Latin | -eo | Forms stative verbs from adjectives; dative... |
| 6 | Proto-Italic | -ēō | Forms stative verbs, indicating a state of being;... |
| 7 | Proto-Italic | -ējō | — |
| 8 | Proto-Indo-European | -éh₁yeti | Thematicization of the athematic stative verbal... |
| 9 | Proto-Indo-European | -yeti | Creates transitive imperfective verbs from roots |