Where does “Siena” come from?

Siena (Italian) comes from Latin sena, from Gaulish Senōnēs, from Proto-Celtic senos, from Proto-Indo-European sénos — old.

Ancestry of “Siena”, step by step

StepLanguageWordMeaning
1Latinsenanominative neuter plural of sēnī; accusative...
2GaulishSenōnēs—
3Proto-Celticsenosold
4Proto-Indo-Europeansénosold

Words derived from “Siena”

Every word from Proto-Indo-European sénos →Every word from Proto-Celtic senos →Every word from Gaulish Senōnēs →