From Latin consanguineus "having the same blood," from con- "with, together" + sanguis "blood."
Meaning:
Related by blood; descended from the same ancestors; having a kinship closer than that of second cousins.
Related or connected by some common affinity or character.
Origin:
Roman law included the term consanguinity among the conditions that made marriage illegal.
The term was originally used to denote a relationship between individuals who shared a common ancestor within a certain degree, and it was extended to include more distant relationships over time.
In modern usage, consanguinity typically refers to a relationship closer than that of second cousins, but the exact definition can vary depending on the context.
