Peril (?), n. [F. péril, fr. L. periculum, periclum, akin to peritus experienced, skilled, and E. fare. See Fare, and cf. Experience.] Danger; risk; hazard; jeopardy; exposure of person or property to injury, loss, or destruction.
[1913 Webster]

In perils of waters, in perils of robbers. 2 Cor. xi. 26.
[1913 Webster]

Adventure hard
With peril great achieved. Milton.
[1913 Webster]

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.
[1913 Webster]

Syn. -- Hazard; risk; jeopardy. See Danger.
[1913 Webster]

Peril (?), v. i. To be in danger. [Obs.] Milton.
[1913 Webster]