Where does “Spektralklasse” come from?
Spektralklasse (German) comes from German klasse, from Russian класс, from Latin classis, from Proto-Italic klāssis, from Proto-Indo-European kelh₁- — to call, cry, summon.
Spektralklasse (German): spectral class
Ancestry of “Spektralklasse”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | German | klasse | great, awesome |
| 2 | Russian | класс | class; grade ; form; classroom |
| 3 | Latin | classis | any one of the five divisions into which Servius... |
| 4 | Proto-Italic | klāssis | — |
| 5 | Proto-Indo-European | kelh₁- | to call, cry, summon |