Comment by The_Colonel

"defenestrace" is a Czech word, "defenestration" is an English word, but they can both trace their origin to the latin "defenestratio".

> The prefix de- is not used only in loanwords, you can construct new words with it just fine.

Listing some examples would strengthen your argument immensely.

> It doesn't sound right in your example but that doesn't mean it's nonsense.

To my native ear, it sounds nonsensical. I wouldn't be able to guess what it is supposed to mean.