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English word nutcase comes from English nut, English case
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nut (English)
(US, slang) A stash of money owned by an extremely rich investor, sufficient to sustain a high level of consumption if all other money is lost.. (US, slang) Monthly expense to keep a venture running.. (US, slang) The amount of money necessary to set up some venture; set-up costs.. (climbing) A shaped piece of metal, threaded by a wire loop, which is jammed in a crack in the rockface and used [...]
case (English)
(US) A unit of liquid measure used to measure sales in the beverage industry, equivalent to 192 fluid ounces.. (mining) A small fissure which admits water into the workings.. (poker slang) Four of a kind.. (printing, historical) A shallow tray divided into compartments or "boxes" for holding type, traditionally arranged in sets of two, the "upper case" (containing capitals, small capitals, [...]
nutcase (English)
(humorous) An eccentric or odd person.. (pejorative, slang) Someone who is insane.