ancestor 祖先, 祖, 先人, 宗, 老祖宗, 祖辈 grandfather 祖父, 爷爷, 祖, 老大爷, 爷 forefather 祖先, 老祖宗, 祖宗, 祖, 先人, 祖辈
祖宗forefathersancestryforbears
forefathers 或 ancestry
ancestors祖先