What does "cousin" mean?

Old cousin is the name of Jiangxi people for fellow villagers in the same province, with certain intimacy. Cousin Jiangxi has also become a kind name for Jiangxi people from other provinces.

In addition, some people who immigrated from Jiangxi to other provinces in modern times also maintained the title of "old cousin", such as northern Fujian and other places.

[Edit] Source

At present, there is no recognized view on the origin of the word "Jiangxi cousin", and opinions vary:

When the Ming Dynasty was founded, a large number of Jiangxi people moved to Hunan because of the war and desolation near Changsha, Hunan. Later, in the Ming and Qing Dynasties, a large number of Jiangxi people moved in, and even nine out of ten households in some places came from Jiangxi. Later, Hunan people thought that Jiangxi was their parents' land and Jiangxi people were their relatives, so they called Jiangxi people cousins. This is the legend of Huguang in Jiangxi.

Zhu Yuanzhang was killed and rescued when he was not an emperor. In order to repay the kindness of Jiangxi people, he promised that if he won the world, Jiangxi people could directly find him in the name of his cousin.

Originated in the Hakka area in southern Jiangxi, Cantonese people who moved from eastern Guangdong called the locals "old cousins" (because both of them are Hakkas), and later spread to the whole of Jiangxi, becoming another name for "fellow villagers".