Xu Family History
Xu Name Meaning
Chinese:: Mandarin form of the surname 徐 meaning ‘gradually slowly’ in Chinese: (i) from Xu (徐) the name of a state (covering present-day Jiangsu and Anhui province) originally granted to Ruo Mu son of an official called Bo Yi during the reign of Xia Yu the first king of the Xia dynasty (2070–1600
Source: Dictionary of American Family Names 2nd edition, 2022