According to some data, "taijian" should be the abbreviation of "shooting the tip of the tongue", or it may be a wrong way of saying "taojian", and some people say it may be a slang. Although the origins are different, it is assumed that the ancients' dajian refers to eating. Many times in some ancient novels or remakes of TV series, you will see the waiter of an inn meeting a guest. The first thing he says is to ask whether he should stay in the restaurant or stay in the hotel? In fact, he is asking if you want to eat or stay. was the waiter's first greeting.
As for the origin of the saying "taijing", it is actually difficult to trace it back to when. It is generally believed to mean passing the tip of the tongue. Just like the previous documentary "A Bite of China" that recorded Chinese food, China believes that eating needs to be tasted through the tip of the tongue. The essence of food can only be tasted through the taste buds on the tongue. Perhaps because of this kind of thinking, there is another way of saying "sucking the tip of the tongue" when eating. From this perspective, it actually makes sense.
Another theory is that it is a misnomer, because zahuo means to cook rice over a fire. Some people think that zaijian is actually called wrong and should be zaohuo. For example, in the novel "Water Margin", eating is done with a lighter, but in "A Dream of Red Mansions" it becomes a lighter. Maybe it's because fire and sharpness are similar, so word of mouth got them confused in the end. Finally, there is another saying that it is because Dajian is a slang term spoken by people from sects that are not under the control of the imperial court. Only Jianghu people often stay in inns.
In general, daijian actually refers to eating. As for its origin, it is difficult to study because it takes too long. The term "taijian" has long been used as a general term for eating in inns, because many movies, TV dramas and novels have related usages. In modern society, even if it is used, it is used in literature, film and television, so there is no saying that it will be used incorrectly. We only need to think of daijian as an ancient term. In reality, the opportunities that can be used basically do not exist.