n. & v.
--n. serious and immediate danger.
--v.tr. (perilled, perilling; US periled, periling) threaten; endanger.
Phrases and idioms:
at one's peril at one's own risk. in peril of with great risk to (in peril of your life). peril point US Econ. a critical threshold or limit.
Etymology: ME f. OF f. L peric(u)lum