Where does “oisos” come from?

oisos (Old French) comes from Latin ōtiōsus, from Latin -ōsus, from Old Latin -ōssus.

Ancestry of “oisos”, step by step

StepLanguageWordMeaning
1Latinōtiōsusidle
2Latin-ōsusose, -ous, -ful (full of or overly prone to)
3Old Latin-ōssus—

Words derived from “oisos”

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