Where does “brain-damaged” come from?

brain-damaged (English) comes from English brain, from Middle English brayn, from Old English bræġn, from Proto-West Germanic *bragn, from Proto-Germanic bragną, from Proto-Indo-European mregʰnom, from Proto-Indo-European men- — to think, mind; spiritual activity; to stay,...

brain-damaged (English): Suffering from an injury to the brain; Poorly...

Definitions

  1. Suffering from an injury to the brain; Poorly...

Ancestry of “brain-damaged”, step by step

brain-damaged traces back through two separate lines of ancestry.

via English brain

StepLanguageWordMeaning
1EnglishbrainThe control center of the central nervous system...
2Middle EnglishbraynThe brain or cerebrum; the organ of thought;...
3Old Englishbræġnbrain
4Proto-West Germanic*bragnbrain
5Proto-Germanicbragnąbrain
6Proto-Indo-Europeanmregʰnomskull, brain
7Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...

via English damaged

StepLanguageWordMeaning
1Englishdamagedsimple past tense and past participle of damage;...
Every word from Proto-Indo-European men-Every word from Proto-Indo-European mregʰnomEvery word from Proto-Germanic bragną