Where does “una” come from?

una (Old Spanish) comes from Latin ūna, from Latin hōra, from Ancient Greek ὥρα, from Proto-Hellenic *worā, from Proto-Indo-European wēr-, from Proto-Indo-European wer- — to burn; to cover, heed, notice; squirrel.

Ancestry of “una”, step by step

StepLanguageWordMeaning
1Latinūnatogether, simultaneously, at the same time
2Latinhōrahour
3Ancient Greekὥραany defined period of time; season; climate
4Proto-Hellenic*worā—
5Proto-Indo-Europeanwēr-true
6Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

Words derived from “una”

Every word from Proto-Indo-European wer- →Every word from Proto-Indo-European wēr- →Every word from Proto-Hellenic *worā →