peril

1 ENTRIES FOUND:
peril /ˈperəl/ noun
plural perils
peril
/ˈperəl/
noun
plural perils
Britannica Dictionary definition of PERIL
somewhat formal + literary
1 
[noncount] : the possibility that you will be hurt or killed or that something unpleasant or bad will happen : danger
— usually used in the phrase in peril
2 
[count] : something that is likely to cause injury, pain, harm, or loss : danger
— usually plural

at your (own) peril

— used to say that if you do something you should be aware that it is dangerous and that you could be harmed, injured, punished, etc.