Where does “kýli” come from?

kýli (Old Norse) comes from Proto-Germanic kūlǭ, from Proto-Indo-European gewl-, from Proto-Indo-European gēw- — to bend, arch.

kýli (Old Norse): boil

Definitions

Step	Language	Word	Meaning
1	Proto-Germanic	kūlǭ	bump; hole
2	Proto-Indo-European	gewl-	vessel; ball; vessel, bowl, ball; ball, bowl,...
3	Proto-Indo-European	gēw-	to bend, arch

kýli — Etymology, Origin & Word History | Etymology Explorer