It was called as Daikyu in ancient times, and those that were longer than 2 m was called as Daikyu, and shorter bows (approximately 45 to 160 cm) were labeled as Hankyu small-sized bow.
古来は大弓（だいきゅう）と呼ばれており、全長およそ2m以上のものを大弓、それ以下のもの（約45cm〜160cm程度）を半弓として区別していた。