[see RELATION.] A person related (to another) by birth or consanguinity; a kinsman. Hence Blood-relationship, consanguinity, kinship; also fig.
1846. Grote, Greece, I. xx. II. 113. Cousins, and the more distant blood-relations.
1837. Marryat, Olla Podr., xxxiv. Blood relationship has nothing to do with it.
1878. Bell, trans. Gegenbauers Comp. Anat., 5. The Blood-relationship of Organisms or Phylogeny.