1. (n.)peril exposure to injury, loss, or destruction; grave risk; jeopardy.
2. peril something that causes or may cause injury, loss, or destruction.
3. (v.t.)peril to imperil.
Etymology: (1175–1225; ME < OF < L perīculum trial, test, danger)
Definition of 'peril'
Princeton's WordNet
1. (noun)hazard, jeopardy, peril, risk, endangerment a source of danger; a possibility of incurring loss or misfortune "drinking alcohol is a health hazard"
2. (noun)riskiness, peril a state of danger involving risk
3. (verb)risk, peril, danger a venture undertaken without regard to possible loss or injury "he saw the rewards but not the risks of crime"; "there was a danger he would do the wrong thing"
4. (verb)endanger, jeopardize, jeopardise, menace, threaten, imperil, peril pose a threat to; present a danger to "The pollution is endangering the crops"
5. (verb)queer, expose, scupper, endanger, peril put in a dangerous, disadvantageous, or difficult position