From Middle Dutch vedere, from Old Dutch fethera, from Proto-West Germanic *feþru, from Proto-Germanic *feþrō, from Proto-Indo-European *péth₂r̥ ~ pth₂én- (“feather, wing”), from *peth₂- (“to fly”).
Compare Low German Fedder, German Feder, West Frisian fear, English feather, Danish fjer, Swedish fjäder.