Where does “Dreieckszahl” come from?
Dreieckszahl (German) comes from German zahl, from Latvian zāle, from German Saal, from Middle High German sal, from Old High German sal, from Proto-West Germanic sāli, from Proto-Germanic saliz, from Proto-Indo-European sol- — whole.
Dreieckszahl (German): triangular number, triangle number
Definitions
- triangular number, triangle number
Ancestry of “Dreieckszahl”, step by step
Dreieckszahl traces back through two separate lines of ancestry.
via German zahl
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | German | zahl | singular imperative of zahlen; first-person... |
| 2 | Latvian | zāle | grass; weed; herb |
| 3 | German | Saal | hall or large room |
| 4 | Middle High German | sal | — |
| 5 | Old High German | sal | house, hall; dwelling, house, entrance hall;... |
| 6 | Proto-West Germanic | sāli | happiness, prosperity; proper, appropriate time |
| 7 | Proto-Germanic | saliz | house; dwelling; hall; room |
| 8 | Proto-Indo-European | sol- | whole |