_{(wow. I can actually spell that before coffee.)}

[1] oed.com:
[mod. f. L. DE- I. 1, 2 + fenestra a window: so in mod.F.]
The action of throwing out of a window.
_{(this apparently happened often enough it got its own word, which is just cool.)}

Defenestration of Prague, the action of the Bohemian insurgents who, on the 21st of May 1618, broke up a meeting of Imperial commissioners and deputies of the States, held in the castle of the Hradshin, and threw two of the commissioners and their secretary out of the window; this formed the prelude to the Thirty Years' War.