From the early years of the Zhou Dynasty, the sage Zhou Gong formulated the Zhou Rites, with the increasing strength of the Central Plains Dynasty, its influence, also from the Yellow River Valley, covering most of the Far East, in the process of dissemination, this set of Zhou Ritual system is also constantly improving, so there is the so-called "red tape" saying.
In this context, in ancient times, people were also called differently: for example, the father of the other party was called Ling zun and the mother was called Ling Tang. However, there is a phenomenon that is quite puzzling, that is, why sons are called "dogs". But the daughter, is called "thousand gold"? After all, there was a patriarchal idea in ancient society, and this phenomenon seems to contradict the idea of son preference.
Dogs
In ancient times, Zhou Li and Confucianism were an inseparable combination. Confucianism advocates "humility and benefit," so a humble word is adopted when claiming to be self-proclaimed or involving one's own family.
For example, in ancient times, when introducing oneself to outsiders, one had to call oneself "not talented" or "small", "under the bottom", "contemptible" and so on. When introducing his wife to outsiders, he will use the title of "humble thorn" to introduce his husband. For example, in the TV series "Smiling Proud of the Jianghu", Ning Zhong, a female heroine of the Huashan Sect, has such a line: "Humble Husband Yue is not a group, and the Jianghu people call it the Gentleman's Sword.".
Therefore, when introducing his son to outsiders, he will call his son a "dog". This is also a kind of humility.
Of course, there is a precedent in history for calling other people's sons "dogs". For example, at the end of the Eastern Han Dynasty, Sun Quan sent someone to contact Guan Yu, the general of Liu Bei's clique, planning to make Guan Yu's daughter-in-law Sun Quan's daughter-in-law. Unexpectedly, Guan Yu looked down on Sun Quan very much and openly humiliated Sun Quan, saying that "tiger women cannot be matched with dogs", which eventually led to the tragedy of Guan Yu later.
Induction: Inuyasha is used to call his own son a humble word, and calling someone else's son is a humiliation.
daughter
Confucianism, in addition to advocating self-humility, mainly maintains a properly respectful attitude towards peers. As a result, two parallel discourse systems in the ancient Confucian world were formed, one of which was to call oneself or introduce one's own family and use modest words. The other set is used when calling outsiders or introducing the family members of outsiders, using praise words.
For example, when mentioning someone else's father, use the word "Ling Zun", and when mentioning someone else's mother, use "Ling Tang". In addition, when referring to others, it is also necessary to consider the status of the other party - after all, ancient society was a hierarchical society: for example, the emperor was called His Majesty, the prince was His Highness, and there were also titles such as Your Excellency, Foot.
"Qianjin" is a term used when calling the daughter of an outsider, indicating respect for the owner of other people's houses and daughters.
In short, Inuyasha belongs to the son of his own family, while Qianjin is called the daughter of someone else's family. The angle is different, so the cultural phenomenon of the son being called "Inuyasha" and the daughter being called "Qianjin" has arisen.