The etymological evolution of "Jiao";
The pictophonetic character "Zu" in Xiao Zhuan has "rou" on the left, which is used as a lateral form to indicate that the original meaning of "Zu" is related to limb organs; The right part is "lack", which is a phonetic symbol and a phonetic symbol. The "meat" beside the shape evolved from the official script stage to the "moon".
The phonetic symbol "que" was mistaken for "que" in the Warring States period, so there are two ways to write "jiao", namely "jiao" and "jiao". In the collation of modern Chinese characters, "Zu" is a standard character and "Zu" is regarded as a variant.
"Shuo Wen Jie Zi": "Foot, shin also." In other words, the foot is the tibia and the tibia is the calf. Zhuangzi Xu Wugui: "The foot is between the two breasts." The thigh is the thigh and the foot is the calf. After the Middle Ages, the meaning of foot was extended and transferred, referring to "foot", that is, the part from toe to heel. "The Book of Jin Tao Qian Biography": "It's called Foot Disease, and I want to take a basket."
The "foot disease" here does not mean leg disease, but foot disease, so you often sit in a bamboo sedan chair. This usage gradually replaced the word "foot" in spoken language, but it was not completely replaced. For example, "brotherhood" cannot be said as "brotherhood", "tripping" does not mean "tripping", "stepping" and "foot" in "football" does not mean "foot".
By referring to the lower end of a human or animal leg, "foot" refers to the lowest part or end of an object, such as the foot of a mountain, the foot of a wall and the foot of a bed. Du Fu's "Cottage is Blown by Autumn Wind": "There is no dry place at the head of the bed, and the feet of the rain are like hemp." "Foot of rain" refers to the raindrops falling intensively.
The lowest meaning of "foot" can also be extended to refer to the remaining material residue that sinks below, that is, waste. For example, "leftovers" refers to the remaining materials that are cut out after raw materials are processed.
In ancient times, "feet" also referred to manual labor, that is, people engaged in manual labor with their feet. For example, porters are laborers who carry goods and luggage; Footwear is a special organization for carrying others, which consists of a suit and some porters. The agency is responsible for managing and utilizing the profits obtained from it. Pay the porter or porter.