Relationship by alliance (2 Chr. 18:1) or by marriage (1 Kings 3:1). Marriages are prohibited within certain degrees of affinity, enumerated Lev. 18:6-17. Consanguinity is relationship by blood.
·noun Companionship; acquaintance. II. Affinity ·noun A relation between species or highe/ groups d...
Webster's Dictionary of the English Language
[Marriage] ...
William Smith's Bible Dictionary