Where does “สี่สิบเจ็ด” come from?
สี่สิบเจ็ด (Thai) comes from Thai สี่, from Proto-Tai siːᴮ, from Middle Chinese 四, from Proto-Sino-Tibetan *pV-lij.
สี่สิบเจ็ด (Thai): 47; forty-seven
Ancestry of “สี่สิบเจ็ด”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Thai | สี่ | 4; four |
| 2 | Proto-Tai | siːᴮ | four |
| 3 | Middle Chinese | 四 | — |
| 4 | Proto-Sino-Tibetan | *pV-lij | — |