Where does “hjärntvätt” come from?

hjärntvätt (Swedish) comes from Swedish tvätt, from Old Norse þváttr, from Proto-Germanic þwahtuz, from Proto-Germanic -þuz, from Proto-Indo-European -tus — Derives action nouns from verb roots.

hjärntvätt (Swedish): brain-washing

Definitions

  1. brain-washing

Ancestry of “hjärntvätt”, step by step

hjärntvätt traces back through two separate lines of ancestry.

via Swedish tvätt

StepLanguageWordMeaning
1Swedishtvättlaundry; a wash
2Old Norseþváttrthe act of washing, laundry, washing
3Proto-Germanicþwahtuzwashing, laundry
4Proto-Germanic-þuzForms result nouns from verb roots, usually from...
5Proto-Indo-European-tusDerives action nouns from verb roots

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-Indo-European -tus →Every word from Proto-Germanic -þuz →Every word from Proto-Germanic þwahtuz →
hjärntvätt — Etymology, Origin & Word History | Etymology Explorer