Where does “prvočíslo” come from?
prvočíslo (Czech) comes from Czech prvý, from Old Czech prvý, from Proto-Slavic pьrvъ, from Proto-Balto-Slavic pírˀwas, from Proto-Indo-European pr̥h₂wós, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.
prvočíslo (Czech): prime number
Definitions
- prime number
Ancestry of “prvočíslo”, step by step
prvočíslo traces back through two separate lines of ancestry.
via Czech prvý
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Czech | prvý | first |
| 2 | Old Czech | prvý | first |
| 3 | Proto-Slavic | pьrvъ | first |
| 4 | Proto-Balto-Slavic | pírˀwas | — |
| 5 | Proto-Indo-European | pr̥h₂wós | first |
| 6 | Proto-Indo-European | per- | before, in front; first; to go through |
| 7 | Proto-Indo-European | pr̥tós | passed , crossed |
via Czech číslo
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Czech | číslo | number; issue |
| 2 | Proto-Slavic | čislo | number |
| 3 | Proto-Slavic | čisti | to read; to honour |
| 4 | Proto-Balto-Slavic | (s)keistéi | — |
| 5 | Proto-Indo-European | *(s)kʷéyt-t ~ *(s)kit-ént | — |
| 6 | Proto-Indo-European | kʷeyt- | to notice; to read |