There are many origins of the name of the knife on Baidu. But I can infer the following points based on exegesis and some ancient examples. .
Firstly, the name of the horizontal sword probably comes from the shape of the knife itself. This kind of knife is as straight as a horizontal sword, so it is called a horizontal sword, because not all knives in the Tang Dynasty are straight, and some are like Japanese swords. Such a curved blade (there is a mural from the Tang Dynasty called "Picture of a Strong Man with a Knife", in which the robber is hiding behind a boulder and peeping at passers-by. The knife in his hand has a curved blade, but it does not have an obvious curve like a samurai sword.). The shape of the horizontal knife is straight, like a drawn horizontal line. Therefore, the Hengdao got its name. In addition, this Hengdao is a standard knife commonly used by Suwei. It is Hengtongheng and Changye, so the standing Suwei in the Song Dynasty is called Hengban. The two may be related (the Song Dynasty inherited the Tang system, and many official systems were left over from the Tang Dynasty).
Second, Mo Dao, a knife unique to the Tang Dynasty, has several features - it is a relatively rough road in the field. It means that the field is divided into many small field ridges called ridges, which are divided into fields). The Mo Dao is the widening and thickening of the horse-cutting sword. There is also the arrangement. When Mo Dao is used, they are arranged side by side. In ancient times, strings of money were closely arranged together, which was called "Mo". Therefore, this kind of knife uses an array closely arranged like a wall to exert its power. Another possibility is that the sound of "Mo" is very special, which refers to the origin of Mo Dao's fighting method. In ancient times, there were no threshing machines. The grains were dried in the sun on the threshing floor and then several people beat them side by side with sticks to separate the grains from the straw. This method was called "Mo" in ancient Tangyin (yin Mouping) - --This method is mostly used in Longyou, Guanxi (a few years ago, Shaanxi also saw this method of threshing, but now it seems that there are fewer Qiang and other Han people), and most of them go to the fortress to fight. people of the place. The movements they were good at were transformed into the Mo Dao Formation, except that the sticks were replaced with ones with a blade on the front.
Three. Beiwei means tiger. The "Beiwei Qinjun" is probably equivalent to the current "Tiger Camp". Why do you say that? This origin is related to an ancient legend, which is also included in Qu Yuan's poems. It is said to be a beautiful mountain ghost (Wei), sitting on the back of a huge and powerful tiger, galloping in the mountains. The literati atmosphere of the Song Dynasty is really pervasive. Even the naming of the army is extremely elegant---such as "Pengri", "Konghe", etc., are all names of the army. And the pro-soldiers in an army are definitely the elite of the unit, so they need to give a more powerful name, but "Tiger Camp" is too vulgar, and "Hu Ben" is too straightforward. That’s why it’s called “Beiwei”. The sword and shield player's leather tag has a big, ferocious tiger head painted on it, so the leather tag is also called Beiwei.