Where does “hjärnspöke” come from?

hjärnspöke (Swedish) comes from Swedish spöke, from Danish spøg, from Middle English spok, from Dutch spook, from Middle Dutch spooc, from Middle Dutch spoke, from Proto-Germanic spōk — spook, ghost, apparition; witchcraft, wizardry.

hjärnspöke (Swedish): an (often threatening) unreasonable belief based solely on one's thoughts and feelings, a figment of the imagination, a bogeyman, a fantasy

Definitions

  1. an (often threatening) unreasonable belief based solely on one's thoughts and feelings, a figment of the imagination, a bogeyman, a fantasy

Ancestry of “hjärnspöke”, step by step

hjärnspöke traces back through two separate lines of ancestry.

via Swedish spöke

StepLanguageWordMeaning
1Swedishspökea ghost (spirit appearing after death)
2Danishspøgjoke, jest; imperative of spøge
3Middle EnglishspokAlternative form of spoke
4Dutchspookphantom, ghost; horror, terror; an annoying and...
5Middle Dutchspoocapparition, ghost; spook, ghost
6Middle Dutchspoke
7Proto-Germanicspōkspook, ghost, apparition; witchcraft, wizardry

via Swedish hjärna

StepLanguageWordMeaning
1Swedishhjärnaa brain; a brain; someone who provides the...
2Old Norsehjarnithe brain
3Proto-Germanichersôcrown of head
4Proto-Indo-Europeanḱerh₂s-head; hornet
5Proto-Indo-Europeanḱerh₂-head, top; horn
Every word from Proto-Germanic spōkEvery word from Middle Dutch spokeEvery word from Middle Dutch spooc