From Proto-Germanic *fetjōjaną (“to surround, fit”) (whence also Dutch vitten (“to be suitable”), Old High German fizzōn (“to surround”)), from *fetjō (“foot, section”) + *-janą (“verbal suffix”) (the former whence Old Norse fit (“webbed foot of waterbirds”), Old English fitt (“song, poem”), Old Saxon fittea (“section”), Old High German fizza (“hem, skein of yarn”)), from Proto-Indo-European *ped-yó-s, from *ped- (“to walk, step”).