Where does “perilous” come from?

perilous (Middle English) comes from Old French perilleus, from Latin periculosus, from Latin -ōsus, from Old Latin -ōssus.

perilous (Middle English): Full of danger or peril; dangerous, harmful,...

Definitions

  1. Full of danger or peril; dangerous, harmful,...

Ancestry of “perilous”, step by step

StepLanguageWordMeaning
1Old Frenchperilleusperilous; very dangerous
2Latinpericulosusdangerous, hazardous, perilous
3Latin-ōsusose, -ous, -ful (full of or overly prone to)
4Old Latin-ōssus—

Words derived from “perilous”

Every word from Old Latin -ōssus →Every word from Latin -ōsus →Every word from Latin periculosus →