A cousin marriage is a marriage where the spouses are cousins (i.e. people with common grandparents or people who share other fairly recent ancestors). The practice was common in earlier times, and continues to be common in some societies today, though in some jurisdictions such marriages are prohibited.

What is it called when someone dates their cousin?

The most commonly used word would be incest, although technically, incest refers to sex between (close) relatives. However, since a marriage is usually supposed to be consummated (meaning the partners in the marriage do have sex), the word is also applied to marriage.

What do you call people who date family?

Consanguinity is a family members.

What is a cousins wife called?

No, you would not - the term cousin-in-law is often used to refer to either your cousins spouse, or your spouses cousin(s) (although the more correct term would be cousin by marriage).

What do you call a cousins wife?

No, you would not - the term cousin-in-law is often used to refer to either your cousins spouse, or your spouses cousin(s) (although the more correct term would be cousin by marriage).

What do you call your cousins husband or wife?

Husband or wife of cousin of ones husband or wife.