Where does “aivosumu” come from?

aivosumu (Finnish) comes from Finnish aivot, from Proto-Finnic aivo, from Proto-Uralic ajŋe — brain.

aivosumu (Finnish): brain fog

Definitions

  1. brain fog

Ancestry of “aivosumu”, step by step

aivosumu traces back through two separate lines of ancestry.

via Finnish aivot

StepLanguageWordMeaning
1Finnishaivotbrain
2Proto-Finnicaivobrain
3Proto-Uralicajŋebrain

via Finnish sumu

StepLanguageWordMeaning
1Finnishsumufog, mist; nebula
2Proto-Finnicsumufog, mist
Every word from Proto-Uralic ajŋe →Every word from Proto-Finnic aivo →Every word from Finnish aivot →
aivosumu — Etymology, Origin & Word History | Etymology Explorer