Where does “oreille-de-mer” come from?

oreille-de-mer (French) comes from Latin auris, from Proto-Italic *auzis — ear.

Ancestry of “oreille-de-mer”, step by step

StepLanguageWordMeaning
1Latinaurisear; dative/ablative plural of aura
2Proto-Italic*auzisear

Words derived from “oreille-de-mer

Every word from Proto-Italic *auzisEvery word from Latin auris