續一切經音義 10.98

10.98

拓跋 (The first character has the fanqie 他各 [tā + gè]; the second has the fanqie 盤末 [pán + mò]; the surname of the Later Wei. The Weishu states: 'The younger son of Changyi, son of the Yellow Emperor, was enfeoffed in the northern lands and ruled through the virtue of Earth. The northern people call earth 拓 and lords 跋; hence they took Tuoba as their clan name. When it came to Emperor Xiaowen, because he read the Zhouyi and saw the Qian hexagram stating: “The primary [元] is the head of all goods,” he subsequently changed it to the Yuan [元] clan.').