genealogy
noun uk/ˌdʒiː.niˈæl.ə.dʒi/ us/ˌdʒiː.niˈæl.ə.dʒi/
[ U ]家谱（学），宗谱（学）;家系，世系
(the study of) the history of the past and present members of a family or families
I became interested in the genealogy of my family. 我对我家的家史产生了兴趣。
[ C ]家谱图，宗谱图
a drawing showing the history of a family with all past and present members joined together by lines