relationship by alliance ( 2 Chronicles 18:1 ) or by marriage ( 1 Kings 3:1 ). Marriages are prohibited within certain degrees of affinity, enumerated Leviticus 18:6-17 . Consanguinity is relationship by blood.

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.