Where does “kummel” come from?

kummel (Swedish) comes from Old Swedish kumbel, from Old Norse kumbl, from Proto-Germanic *kumblą.

Ancestry of “kummel”, step by step

Step	Language	Word	Meaning
1	Old Swedish	kumbel	—
2	Old Norse	kumbl	—
3	Proto-Germanic	*kumblą	—

kummel — Etymology, Origin & Word History | Etymology Explorer