Swedish byka

← German bauchen (cognate)

← German bäuchen (cognate)

← English buck (cognate)

← French buer (cognate)

← Middle Low German büken (derived)

← Proto-West Germanic *bōkijā (derived)

→ English buck (cognate)

→ Finnish pyykätä (derived)

→ Westrobothnian bøtj (cognate)