1. Kun is a Chinese character, pronounced su not, pictographic. From the dead, the voice is weak. In ancient Chinese, it looks like a hat, a human face in the middle, and a declining image in the lower. The word is also "dead". "Gun" is a later word. The original meaning of hemp fiber is the name of rain gear, namely hemp fiber.

2. Related words: water chestnut, grass chestnut, snow chestnut, ploughed chestnut, bamboo chestnut, water chestnut, water chestnut, water chestnut, water chestnut, water chestnut, water chestnut, water chestnut, water chestnut, water chestnut, etc.