Where does “perillier” come from?

perillier (Old French) comes from Old French peril, from Vulgar Latin periclu(m), from Latin perīculum.

perillier (Old French): to die; to perish

Definitions

Step	Language	Word	Meaning
1	Old French	peril	peril; hazard; danger
2	Vulgar Latin	periclu(m)	—
3	Latin	perīculum	—

perillier — Etymology, Origin & Word History | Etymology Explorer