parentship
/ˈpɑrəntʃɪpʃɪp/Definitions
1. noun
The state of being a parent, or the relationship between a parent and child.
“The couple’s parentship of their adopted child was a beautiful thing to see.”
2. noun
A person or persons in the role of a parent, especially in relation to a child or children.
“The single mother’s parentship of her three kids was a remarkable achievement.”