Where does “estratosfera” come from?

estratosfera (Spanish) comes from Spanish estrato, from Latin strātus, 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.

estratosfera (Spanish): stratosphere

Definitions

  1. stratosphere

Ancestry of “estratosfera”, step by step

StepLanguageWordMeaning
1Spanishestratolayer; stratum; stratus; social class in...
2Latinstrātus—
3Latinsternōto spread, stretch out, spread out
4Proto-Italicstornō—
5Proto-Indo-Europeanstr̥-n-h₃-—
6Proto-Indo-Europeansterh₃-to spread, extend, stretch out
7Proto-Indo-Europeanster-sterile, infertile
Every word from Proto-Indo-European ster- →Every word from Proto-Indo-European sterh₃- →Every word from Proto-Indo-European str̥-n-h₃- →