Where does “Grenier” come from?
Grenier (French) comes from Middle French grenier, from Old French grenier, from Latin grānārium, from Latin grānum, from Proto-Italic grānom, from Proto-Indo-European ǵr̥h₂nóm, from Proto-Indo-European ǵr̥h₂nós, from Proto-Indo-European ǵerh₂- — to grow old, to mature.
Ancestry of “Grenier”, step by step
Words derived from “Grenier”