Relationship by descent from a common ancestor; consanguinity; kinship.

Descent; lineage; especially, honorable birth; the highest royal lineage.

Descent from parents of recognized breed; excellence or purity of breed.

Literally "Eastern blood." A bloodhorse, before the Thoroughbred breed, was a horse of mostly Arabian, Barb or Turkish blood. "Thorough-blood" was the same thing, as was "thoroughly-bred" which was shortened to "thoroughbred."

the descendants of one individual; "his entire lineage has been warriors"