Where does “oui” come from?

oui (French) comes from Old French oïl, from Vulgar Latin oclus, from Latin oculus, from Proto-Italic okʷelos, from Proto-Indo-European h₃ókʷs, from Proto-Indo-European h₃ekʷ- — to see; eye.

oui (French): past participle of ouïr

Definitions

  1. past participle of ouïr

Ancestry of “oui”, step by step

oui traces back through two separate lines of ancestry.

via Old French oïl

StepLanguageWordMeaning
1Old FrenchoïlAlternative form of oil; yes
2Vulgar Latinocluseye; Alternative form of oculus
3LatinoculusAn eye; the power of sight; a spot resembling an...
4Proto-Italicokʷeloseye
5Proto-Indo-Europeanh₃ókʷseye
6Proto-Indo-Europeanh₃ekʷ-to see; eye

via Old French

StepLanguageWordMeaning
1Old FrenchAlternative form of oi
2Latinaudītusheard, having been listened to
3Latin-tusForms the past participle of verbs; Forms...
4Proto-Italic-tus
5Proto-Indo-European-tusDerives action nouns from verb roots

Words derived from “oui

Every word from Proto-Indo-European h₃ekʷ-