a. [ OF. perillous, perilleus, F. périlleux, L. periculosus. See Peril. ] [ Written also perillous. ] 1. Full of, attended with, or involving, peril; dangerous; hazardous; as, a perilous undertaking. [ 1913 Webster ]
Infamous hills, and sandy, perilous wilds. Milton. [ 1913 Webster ]
2. Daring; reckless; dangerous. [ Obs. ] Latimer. [ 1913 Webster ]
For I am perilous with knife in hand. Chaucer. [ 1913 Webster ]
-- Per"il*ous*ly, adv. -- Per"il*ous*ness, n. [ 1913 Webster ]