Where does “ustia” come from?

ustia (Vulgar Latin) comes from Latin Ostia, from Latin ōs, from Proto-Italic ōs, from Proto-Indo-European h₃ésth₁ — bone.

Ancestry of “ustia”, step by step

StepLanguageWordMeaning
1LatinOstiaOstia
2Latinōsmouth
3Proto-Italicōsmouth
4Proto-Indo-Europeanh₃ésth₁bone

Words derived from “ustia”

Every word from Proto-Indo-European h₃ésth₁ →Every word from Proto-Italic ōs →Every word from Latin ōs →