Where does “čtyřstěn” come from?
čtyřstěn (Czech) comes from Czech stěna, from Old Czech stěna, from Proto-Slavic stěna, from Proto-Balto-Slavic staiˀnāˀ, from Proto-Indo-European stoyh₂-neh₂, from Proto-Indo-European steyh₂-, from Proto-Indo-European steh₂- — to stand.
čtyřstěn (Czech): tetrahedron
Definitions
- tetrahedron
Ancestry of “čtyřstěn”, step by step
čtyřstěn traces back through two separate lines of ancestry.
via Czech stěna
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Czech | stěna | wall |
| 2 | Old Czech | stěna | — |
| 3 | Proto-Slavic | stěna | conglomeration; lump, block; cliff, rock |
| 4 | Proto-Balto-Slavic | staiˀnāˀ | — |
| 5 | Proto-Indo-European | stoyh₂-neh₂ | — |
| 6 | Proto-Indo-European | steyh₂- | to stiffen |
| 7 | Proto-Indo-European | steh₂- | to stand |
via Czech čtyř
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Czech | čtyř | — |