When did the term "dad" come into use in China?

"Dad" was used in China before the Song Dynasty.

Daddy: a term of endearment for a father, mostly used in spoken language. Contrary to most people's impression, the word originated very early, written in the book in the Three Kingdoms Wei Mingdi Taihe years of the "Guangya" in the "interpretation of the pro" chapter already cloud: "Dad, father also." In Mr. Jin Yong's martial arts novels, you can also see that most of the fathers are addressed as "Dad" instead of "Father", such as Yang Zao, that is, because the word did exist before the Song Dynasty. Nowadays, the public's impression of the ancient name of "father" and "mother" comes mainly from movies and TV dramas, and so on, half-understanding, not knowing who is at fault.

There are many ways to address a father in spoken language, including dad, papa, papi, dad, abba, dad, old dad, dad, daddies, daddies, daddies (from the Cantonese pronunciation of the English phrase "Dadd also refers to the father as y"), master, old man, old man, old man, old man, old man, old man, old man, old man. (from "Three Character Classic" in Dou Yanshan, often misspelled as Lao Dou in Cantonese), old man, Dadd, Dosan; and some places in and around Chongqing, Sichuan, call their fathers Lao Han (儿), and so on.

Ancient China is also known as dad, and in Manchu, ama. Dead father was called dead father, the first father, the first Yan, Kao, the first Kao, Huangkao; living father for the biological father, "biological father" can also refer to the blood relationship between the biological father is also called pro-dad (as opposed to step-father, adoptive father or father).