HALF BLOOD

(A) Siblings who share only a common parent (step-siblings), a half-brother or half-sister. (B) parentage, kindred. When persons have only one parent in common, they are of the half-blood. For example, if John marry Sarah and has a son by that marriage, and after Sarah’s death he marry Maria, and has by her another son, these children are of the half-blood; whereas two of the children of John and Sarah would be of the whole blood. 2. By the English common law, one related to an intestate of the half-blood only, could never inherit, upon the presumption that he is not of the blood of the original purchaser; but this rule has been greatly modified.