(n.) The relation of persons by blood, in distinction from affinity or relation by marriage; blood relationship; as, lineal consanguinity; collateral consanguinity.

affiliation affinity agnation alliance ancestry apparentation birth blood blood relationship bloodline branch breed brotherhood brothership cognation common ancestry common descent common source common stock connection cousinhood cousinship derivation descent direct line distaff side enation extraction family family relationship fatherhood female line filiation fraternity house kindred kinship line line of descent lineage male line maternity matrilineage matriliny matrisib matrocliny motherhood paternity patrilineage patriliny patrisib patrocliny phylum propinquity race relation relationship seed sept sibship side sisterhood sistership spear side spindle side stem stirps stock strain succession sword side ties of blood