Kisoba originally meant noodles; that were made only from buckwheat flour, and a small amount of binding agent or from buckwheat flour and a very little additive such as wheat flour.
元来は「そば粉だけで打ったそば・そば粉に少量のつなぎを加えただけのそば・小麦粉などの混ぜものが少ないそば」を意味するものだった。