Consanguinity comes from a Latin word “consanguinitas” and meaning “blood relation.” In English is just means your blood relatives. That would be your mother or father or your children. There is also what is referred to as “affinity” which in layman’s terms it is the property of being from the same kinship as another person. That is your relatives that are not a blood relation. Your spouse, your in-laws, your aunt or uncle by marriage are all examples of non-blood relations. In even simpler terms, they both refer to your relatives.
In family law consanguinity and affinity are very important terms when it comes to Domestic Violence Restraining Orders (“DVRO”). Under California law, in order to obtain a domestic violence the party seeking protection and the party to be restrained must 1) be married or formerly married, 2) in a current or past dating relationship, 3) be current or former cohabitants, 4) be the parents of a child or the child themselves, or 5) be any “other person related by consanguinity or affinity within the second degree.” Family Code §6211.