Where does “ratza” come from?

ratza (Old High German) comes from Proto-Germanic rattō, from Proto-Indo-European reh₁d- — to scrape, scratch, gnaw.

Ancestry of “ratza”, step by step

StepLanguageWordMeaning
1Proto-Germanicrattōrat
2Proto-Indo-Europeanreh₁d-to scrape, scratch, gnaw

Words derived from “ratza”

Every word from Proto-Indo-European reh₁d- →Every word from Proto-Germanic rattō →