Where does “autoestrada” come from?

autoestrada (Portuguese) comes from Galician estrada, from Old Portuguese estrada, from Late Latin strata, from Latin stratus, from Latin sterno, from Proto-Italic stornō, from Proto-Indo-European str̥-n-h₃-, from Proto-Indo-European sterh₃- — sterile, infertile.

autoestrada (Portuguese): motorway Britain, Ireland, New Zealand, freeway Australia, Canada, US, highway parts of the US, expressway parts of Canada, parts of the US, controlled-access highway

Definitions

  1. motorway Britain, Ireland, New Zealand, freeway Australia, Canada, US, highway parts of the US, expressway parts of Canada, parts of the US, controlled-access highway

Ancestry of “autoestrada”, step by step

autoestrada traces back through two separate lines of ancestry.

via Galician estrada

StepLanguageWordMeaning
1Galicianestradaroad, highway
2Old Portugueseestrada
3Late Latinstratapaved road; a paved road; inflection of...
4Latinstratusspread, stretched out, spread out, having been...
5LatinsternoI spread, stretch out, spread out; I calm, still,...
6Proto-Italicstornō
7Proto-Indo-Europeanstr̥-n-h₃-
8Proto-Indo-Europeansterh₃-to spread, extend, stretch out
9Proto-Indo-Europeanster-sterile, infertile

via Portuguese estrada

StepLanguageWordMeaning
1Portugueseestradaroad
Every word from Proto-Indo-European ster-Every word from Proto-Indo-European sterh₃-Every word from Proto-Indo-European str̥-n-h₃-