Where does “stratus” come from?
stratus (Latin) comes from Latin sternō, from Proto-Italic stornō, from Proto-Indo-European str̥-n-h₃-, from Proto-Indo-European sterh₃-, from Proto-Indo-European ster- — sterile, infertile.
Ancestry of “stratus”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Latin | sternō | — |
| 2 | Proto-Italic | stornō | — |
| 3 | Proto-Indo-European | str̥-n-h₃- | — |
| 4 | Proto-Indo-European | sterh₃- | to spread, extend, stretch out |
| 5 | Proto-Indo-European | ster- | sterile, infertile |