Per·il n. Danger; risk; hazard; jeopardy; exposure of person or property to injury, loss, or destruction.
In perils of waters, in perils of robbers. --2 Cor. xi. 26.
Adventure hard
With peril great achieved. --Milton.
At one's peril, or On one's peril, with risk or danger to one; at the hazard of. “On thy soul's peril.” --Shak.
Syn: -- Hazard; risk; jeopardy. See Danger.