Where does “*tuśćyás” come from?
*tuśćyás (Proto-Indo-Aryan) comes from Proto-Indo-Iranian *tušćyás, from Proto-Indo-European tus-sḱ-yós, from Proto-Indo-European tews-, from Proto-Indo-European tu- — to swell; bird-cry, shriek.
Ancestry of “*tuśćyás”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Proto-Indo-Iranian | *tušćyás | — |
| 2 | Proto-Indo-European | tus-sḱ-yós | empty |
| 3 | Proto-Indo-European | tews- | to be empty; to drain; to be happy |
| 4 | Proto-Indo-European | tu- | to swell; bird-cry, shriek |