Where does “katar” come from?

katar (Swedish) comes from Medieval Latin Cathari, from Ancient Greek καθαρός — clean, clear, pure.

Ancestry of “katar”, step by step

Step	Language	Word	Meaning
1	Medieval Latin	Cathari	the Pure
2	Ancient Greek	καθαρός	clean, clear, pure

Words derived from “katar”

kataari

Every word from Ancient Greek καθαρός →Every word from Medieval Latin Cathari →

katar — Etymology, Origin & Word History | Etymology Explorer