The Oxford Thesaurus An A-Z Dictionary of Synonyms - lineage n.

1) extraction, ancestry, family tree, pedigree, descent, stock, bloodline, parentage, genealogy: She has spent a lot of time tracing the lineage of the village's families. 2) forebears, forefathers, foremothers, family, people, clan; descendants, succession, progeny, offspring: Does Debrett list his lineage? Peerages were confined to the lineage of the person ennobled.