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.

Ancestry of “lavandarius”, step by step

StepLanguageWordMeaning
1LatinlavoI wash, bathe; I wet, moisten
2Proto-Italiclawaō
3Proto-Indo-Europeanléwh₃eti
4Proto-Indo-Europeanlewh₃-to wash

Words derived from “lavandarius

Every word from Proto-Indo-European lewh₃-Every word from Proto-Indo-European léwh₃etiEvery word from Proto-Italic lawaō