The essence of risk is to let go, to be in wilderness. Loosing the grip. In german language a word is ein Begriff and to understand is zu begreifen. To have words is to be in controll. This is why word gives human an illution of controll.
To loosing the (be)grip is to risk losing something, but it is also to limit yourself. To risk is to open up to the surroundings, and at the same time to limit oneself.