Where does “tetraedrum” come from?
tetraedrum (English) comes from Ancient Greek τετράεδρον, from Ancient Greek τετράεδρος, from Ancient Greek -ός, from Proto-Hellenic *-os, from Proto-Indo-European -ós — Creates agent nouns from verb stems, denoting...
tetraedrum (English): Obsolete form of tetrahedron
Definitions
- Obsolete form of tetrahedron
Ancestry of “tetraedrum”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Ancient Greek | τετράεδρον | triangle-based pyramid |
| 2 | Ancient Greek | τετράεδρος | having four faces, tetrahedral |
| 3 | Ancient Greek | -ός | Forms agentive or patientive adjectives and nouns from the o-grade of a verbal root |
| 4 | Proto-Hellenic | *-os | — |
| 5 | Proto-Indo-European | -ós | Creates agent nouns from verb stems, denoting... |