Where does “Estrella” come from?

Estrella comes from Spanish estrella, from Latin stella meaning "star," from Proto-Indo-European h₂stḗr, ultimately from h₂eHs-.

Ancestry of “Estrella”, step by step

Step	Language	Word	Meaning
1	Spanish	Estrella	—
2	Old Spanish	estrella	star
3	Latin	stēlla	—
4	Proto-Italic	stērolā	star
5	Proto-Indo-European	h₂stḗr	star
6	Proto-Indo-European	h₂eHs-	to be/become dry; to burn, to glow; hearth

Estrella — Etymology, Origin & Word History | Etymology Explorer