Where does “crackbrainedness” come from?

crackbrainedness (English) comes from English crackbrained, from English brained, 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 — to think, mind; spiritual activity; to stay,...

crackbrainedness (English): The quality of being crackbrained; idiocy

Definitions

  1. The quality of being crackbrained; idiocy

Ancestry of “crackbrainedness”, step by step

crackbrainedness traces back through two separate lines of ancestry.

via English crackbrained

StepLanguageWordMeaning
1EnglishcrackbrainedIdiotic
2EnglishbrainedHaving a particular kind or number of brain;...
3EnglishbrainThe control center of the central nervous system...
4Middle EnglishbraynThe brain or cerebrum; the organ of thought;...
5Old Englishbræġnbrain
6Proto-West Germanic*bragnbrain
7Proto-Germanicbragnąbrain
8Proto-Indo-Europeanmregʰnomskull, brain
9Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European men-