What does ancestry mean?
The definition of ancestry
An”ces*try, n.
Etym: [Cf. OF. ancesserie. See Ancestor.]

1 Condition as to ancestors; ancestral lineage; hence, birth or honorable descent. Title and ancestry render a good man more illustrious, but an ill one more contemptible. Addison.
2 A series of ancestors or progenitors; lineage, or those who compose the line of natural descent.