Where does “hjernerystelse” come from?

hjernerystelse (Norwegian Bokmål) comes from Norwegian Bokmål hjerne, from Old Norse hjarni, from Proto-Germanic hersô, from Proto-Indo-European ḱerh₂s-, from Proto-Indo-European ḱerh₂- — head, top; horn.

hjernerystelse (Norwegian Bokmål): concussion head injury affecting the brain

Definitions

  1. concussion head injury affecting the brain

Ancestry of “hjernerystelse”, step by step

hjernerystelse traces back through two separate lines of ancestry.

via Norwegian Bokmål hjerne

StepLanguageWordMeaning
1Norwegian Bokmålhjernebrain
2Old Norsehjarnithe brain
3Proto-Germanichersôcrown of head
4Proto-Indo-Europeanḱerh₂s-head; hornet
5Proto-Indo-Europeanḱerh₂-head, top; horn

via Norwegian Bokmål rystelse

StepLanguageWordMeaning
1Norwegian Bokmålrystelse—
Every word from Proto-Indo-European ḱerh₂- →Every word from Proto-Indo-European ḱerh₂s- →Every word from Proto-Germanic hersô →