Where does “Arauco” come from?

Arauco (Spanish) comes from Mapudungun rag ko — clayey water.

Ancestry of “Arauco”, step by step

Step	Language	Word	Meaning
1	Mapudungun	rag ko	clayey water

Words derived from “Arauco”

Every word from Mapudungun rag ko →

Arauco — Etymology, Origin & Word History | Etymology Explorer