The organ a mind runs on. In this record it is spoken of plainly and often — the thing that was called broken and turned out to be differently wired.
Old English braegen, from Proto-Germanic *bragnam; the word has few secure cognates outside West Germanic, so its deeper ancestry is not settled.
The organ a mind runs on, spoken of here plainly and often — including the one that was once called broken and turned out only to be wired differently.