Surname Sun: The ancestor took the surname "Hong" from the Monkey King. The word "猢" went to the side of a beast, but it turned out to be an ancient moon. Ancient means old, and moon means yin. Lao Yin cannot transform and educate, so he is given the surname "狲". The word "狲" is next to the animal, which is the sub-lineage. The son refers to a male child, and the tie refers to an infant. This is in line with the basic theory of infants, and the surname is "Sun".
The name Wukong: There are twelve characters in the Patriarch's sect, and the names are assigned to each other. The Monkey King is the tenth generation disciple. Those twelve characters are the twelve characters of "the vast wisdom, true nature, ocean, enlightenment and perfect enlightenment". Ranked at the Monkey King, it is the time for "enlightenment". The Patriarch gave the Monkey King a Dharma name, "Sun Wukong".
Extended information:
Sun Wukong comes from "Journey to the West", one of the four famous works. His ancestral home is Dongsheng Shenzhou. He was born from the fairy stone since the beginning of the world. He led a group of monkeys into the Water Curtain Cave and became the king of monkeys, revered as the "Monkey King". Later, he went through thousands of mountains and rivers to study under the master Subhuti. He was named Sun Wukong and learned superb spells such as the Great Immortal Technique, the Seventy-two Transformations of Earthly Evil Numbers, and somersault clouds.
Sun Wukong is intelligent, lively, loyal and hates evil. He represents wit and bravery in folk culture. The legend of Journey to the West began to appear in the Tang Dynasty and continued to the Ming and Qing Dynasties. In the Ming Dynasty, a collection of these legends appeared in "Journey to the West". Sun Wukong is regarded as a god by the Chinese in these folk myths of the past dynasties.