Where does “unperilous” come from?

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

unperilous (English): Not perilous

Definitions

  1. Not perilous

Ancestry of “unperilous”, step by step

unperilous traces back through two separate lines of ancestry.

via English perilous

StepLanguageWordMeaning
1EnglishperilousDangerous, full of peril
2Middle EnglishperilousFull of danger or peril; dangerous, harmful,...
3Old Frenchperilleusperilous; very dangerous
4Latinpericulosusdangerous, hazardous, perilous
5Latin-ōsusose, -ous, -ful (full of or overly prone to)
6Old Latin-ōssus

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Old Latin -ōssusEvery word from Latin -ōsusEvery word from Latin periculosus