English

Noun

descendancy ‎(countable and uncountable, plural descendancies)

1. (uncountable) The quality or condition of being a descendant.
   • 1993, Stephen J. Binz, The God of Freedom and Life: A Commentary on the Book of Exodus

     The principal concern of the priestly writers was to legitimate the role of Aaron by demonstrating his descendancy from the priestly lineage of Levi.

2. (countable) Descendants considered collectively.
   • 1989, Ontario Genealogical Society, Families, Volumes 28-29

     His sections in the book include Types of Genealogical Projects (pedigrees, lineages, descendancies, relationships).