sphere sovereignty
the concept that each sphere of life (e.g. civil, religious, family, etc.) has its own distinct responsibilities and authority or competence, and stands equal to other spheres of life
en-US/ˈsfɪɹ ˈsɑvɹənti/
en-GB/sˈfɪə ˈsɒvəˌɹɪntɪ/