Where does “galning” come from?

galning (Swedish) comes from Old Swedish gælninger, from Old Swedish galin, from Old Norse galinn, from Old Norse gala, from Proto-Germanic galaną, from Proto-Indo-European ǵʰel- — to shine, glimmer, glow; to shimmer, gleam;...

galning (Swedish): a lunatic, a madman

Definitions

a lunatic, a madman

Ancestry of “galning”, step by step

Step	Language	Word	Meaning
1	Old Swedish	gælninger	—
2	Old Swedish	galin	—
3	Old Norse	galinn	enchanted; mad, frantic; past participle of gala
4	Old Norse	gala	to sing; to crow; to chant
5	Proto-Germanic	galaną	to shout, yell; to charm, sing
6	Proto-Indo-European	ǵʰel-	to shine, glimmer, glow; to shimmer, gleam;...

Every word from Proto-Indo-European ǵʰel- →Every word from Proto-Germanic galaną →Every word from Old Norse gala →