The noun consanguinity means "relation by blood," so if you want to dazzle your brother, point out that consanguinity isn't the only reason you hang out with him — he's also a great guy!

Is consanguinity a word?

relationship by descent from a common ancestor; kinship (distinguished from affinity). close relationship or connection.

What does consanguinity mean?

Consanguinity ("blood relation", from Latin consanguinitas) is the characteristic of having a kinship with another person (being descended from a common ancestor). Many jurisdictions have laws prohibiting people who are related by blood from marrying or having sexual relations with each other.