conjugality
/kɒndʒʊˈɡeɪɪtɪ/Definitions
1. noun
The state of being married or the quality of being well-suited for marriage.
“Their long-term relationship was a testament to the strength of their conjugality.”
2. noun
The quality of being joined or united, especially in marriage or a romantic relationship.
“The couple’s conjugality was the foundation of their happy marriage.”