The term ‘kyriarchy’ refers to the broad system of domination maintaining all intersecting systems of oppression and marginalisation, including cissexism, racism, sexism, heterosexism, ableism, classism, etc. In other words, the kyriarchy is the system that consists of all forms of oppression.
While the term ‘patriarchy’ refers only to sexism, ‘kyriarchy’ refers to all kinds of domination. It’s a useful term in social justice because it helps us refer to a number of intersecting oppressions instead of just one.
The term kyriarchy was coined by Elisabeth Schussler Fiorenza in her 2001 book, Wisdom Ways: Introducing Feminist Biblical Interpretation.