ancestry
noun [ U or C ] uk/ˈæn.ses.tri/ us/ˈæn.ses.tri/
祖先，家系
your ancestors who lived a long time ago, or the origin of your family
He was proud of his Native American ancestry. 作为一个印第安人的后代，他非常自豪。
His wife was of royal ancestry. 他的妻子有皇室血统。
The family has traced its ancestry back to the Norman invaders. 该家族的祖先可上溯到诺曼征服者。