a record or account of the ancestry and descent of a person, family, group, etc.

the study of family ancestries and histories.

descent from an original form or progenitor; lineage; ancestry.

Biology . a group of individuals or species having a common ancestry

The various species of Darwin's finches form a closely knit genealogy.

noun

ancestry , blood line , derivation , descent , extraction , generation , genetics , heredity , history , line , lineage , parentage , pedigree , progeniture , stemma , stirps , stock , strain , family tree , birth , blood , bloodline , family , origin , seed