- Study of family lines - An account or history of the descent of a person or
family from an ancestor; enumeration of ancestors and their children in
the natural order of succession; a pedigree. - Regular descent of a person or family from a progenitor;
pedigree; lineage.
- A limb of a tree - Diversify, ... out - Offshoot - Section - Subdivision - Subsection of second-class cattle farm - Subsection of second-rate cattle farm