Where does “Donostia” come from?

Donostia (Basque) comes from Basque done, from Latin Domine, from Latin die, from Latin dies, from Latin diem, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws — to be bright; sky, heaven.

Ancestry of “Donostia”, step by step

StepLanguageWordMeaning
1Basquedoneholy
2LatinDomineGuide, O Lord my God, my way by your sight
3Latindieablative singular of diēs; day; before the day
4LatindiesA day, "particularly:"
5Latindiemaccusative singular of diēs
6Proto-Italicdjēmaccusative singular of *djous
7Proto-Italic*djous
8Proto-Indo-Europeandyḗwssky, heaven; sky god
9Proto-Indo-Europeandyéwssky, heaven
10Proto-Indo-Europeandyew-to be bright; sky, heaven

Words derived from “Donostia

Every word from Proto-Indo-European dyew-