Where does “Reykjanes” come from?

Reykjanes (Icelandic) comes from Old Norse reykr, from Proto-Germanic raukiz, from Proto-Indo-European rewǵ-, from Proto-Indo-European rew- — to roar, growl, grumble; to roar; growl; grumble;...

Ancestry of “Reykjanes”, step by step

Step	Language	Word	Meaning
1	Old Norse	reykr	smoke
2	Proto-Germanic	raukiz	smoke, vapour
3	Proto-Indo-European	rewǵ-	—
4	Proto-Indo-European	rew-	to roar, growl, grumble; to roar; growl; grumble;...

Every word from Proto-Indo-European rew- →Every word from Proto-Indo-European rewǵ- →Every word from Proto-Germanic raukiz →