Where does “hot-brain” come from?

hot-brain (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,...

hot-brain (English): an impetuous, fiery person; a hothead

Definitions

  1. an impetuous, fiery person; a hothead

Ancestry of “hot-brain”, step by step

hot-brain 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 hot

StepLanguageWordMeaning
1EnglishhotHaving a high temperature; Causing the air to be...
2Middle Englishhothot
3Old Englishhāthot, fervent, fervid, fierce
4Old Englishhātanto promise; to command, promise; to command, call...
5Hungarian-anAdded to an adjective to create an adverb; Added...
6HungarianUsed to form the third-person singular indicative...
7Proto-Uralic-i
Every word from Proto-Indo-European men-Every word from Proto-Indo-European mregʰnomEvery word from Proto-Germanic bragną
hot-brain — Etymology, Origin & Word History | Etymology Explorer