The clan family-tree would commence with the primogenitor who settled in a particular location and raised his family there. It would rest with the latest generation updating it, with all in-between ancestors duly enumerated. 宗谱的源头通常是一位在某个地方开枝散叶的远祖，中间一一列出世代祖宗，由在世的那一代子孙负责修订。
现代英汉综合大辞典
始祖; 祖先
柯林斯
百科