cuckoldize
/ˈkʌkˌɔldaɪz/Definitions
1. verb
to cause or make someone to be a cuckold, especially by being unfaithful or by allowing a spouse to be unfaithful
“The husband felt cuckolded when he discovered his wife’s affair.”
2. noun
the act of causing or making someone to be a cuckold
“The discovery was the final blow to the marriage, a painful cuckoldize for the betrayed husband.”