Where does “astro” come from?

astro (Spanish) comes from Latin astrum, from Ancient Greek ἄστρον, from Ancient Greek ἀστήρ, from Proto-Hellenic astḗr, from Proto-Indo-European h₂stḗr, from Proto-Indo-European h₂eHs- — to be/become dry; to burn, to glow; hearth.

astro (Spanish): cosmic body, celestial body; star

Definitions

  1. cosmic body, celestial body; star

Ancestry of “astro”, step by step

StepLanguageWordMeaning
1Latinastruma star
2Ancient GreekἄστρονA celestial body
3Ancient Greekἀστήρa celestial body; illustrious person; starfish
4Proto-Hellenicastḗrstar
5Proto-Indo-Europeanh₂stḗrstar
6Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth

Words derived from “astro”

Every word from Proto-Indo-European h₂eHs- →Every word from Proto-Indo-European h₂stḗr →Every word from Proto-Hellenic astḗr →