Where does “lavandarius” come from?
lavandarius (Late Latin) comes from Latin lavo, from Proto-Italic lawaō, from Proto-Indo-European léwh₃eti, from Proto-Indo-European lewh₃- — to wash.
lavandarius (Late Latin) comes from Latin lavo, from Proto-Italic lawaō, from Proto-Indo-European léwh₃eti, from Proto-Indo-European lewh₃- — to wash.