Where does “ventilation” come from?

ventilation (Middle French) comes from Old French ventilacion, from Late Latin ventilatio, from Latin ventilō, from Latin ventus, from Proto-Italic wentos, from Proto-Indo-European h₂wéh₁n̥ts, from Proto-Indo-European h₂wḗh₁ti, from Proto-Indo-European h₂weh₁- — to blow.

Ancestry of “ventilation”, step by step

StepLanguageWordMeaning
1Old Frenchventilacion
2Late Latinventilatioairing; ventilation
3Latinventilōto toss, swing, brandish in the air
4Latinventusa wind; arrival
5Proto-Italicwentoswind
6Proto-Indo-Europeanh₂wéh₁n̥tsblowing; that which blows; the wind, air
7Proto-Indo-Europeanh₂wḗh₁tito blow
8Proto-Indo-Europeanh₂weh₁-to blow

Words derived from “ventilation

Every word from Proto-Indo-European h₂weh₁-
ventilation — Etymology, Origin & Word History | Etymology Explorer