What was a haircut called in ancient times?

The ancients talked about filial piety, and cutting hair was a violation of filial piety. Cutting hair is either a response to the government's policy (changing hair and clothes in the Qing Dynasty) or a manifestation of determination. Anyway, cutting hair is a very tragic thing.

The word "haircut" in Historical Records of Zhou Benji means "haircut": the eldest sons Taibo and Yu Zhongzhi tried to establish a calendar to spread the prosperity, but they died like Man Jing, and their tattoos were cut off to make calendars.