"Shuowen Jiezi": Old:? Old, old remains. The sound comes from the mortar. Now the old traditional writing method should be: grass at the beginning, a 鹹 at the bottom, and a mortar at the bottom.
As shown in the picture, the correct way of writing "old" traditional Chinese characters is on the upper right side. The lower right side is written in simplified Chinese. Those on the left are all written in variant styles.