Where does “tos” come from?
tos (Old Spanish) comes from Latin tussis, from Proto-Italic tussis, from Proto-Indo-European tud-ti-s, from Proto-Indo-European (s)tewd-, from Proto-Indo-European stew- — to praise, laud.
Ancestry of “tos”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Latin | tussis | cough |
| 2 | Proto-Italic | tussis | — |
| 3 | Proto-Indo-European | tud-ti-s | cough |
| 4 | Proto-Indo-European | (s)tewd- | to push, to hit |
| 5 | Proto-Indo-European | stew- | to praise, laud |