Who is a cuckold?

A cuckold is a man whose partner is unfaithful, often without his knowledge. Traditionally, the term has been associated with a husband whose wife engages in sexual relationships with other men. In modern contexts, it can also refer to individuals who derive pleasure from the idea or reality of their partner being with someone else, sometimes as part of a consensual non-monogamous dynamic. The term has historical roots and can carry various connotations depending on its use.