auntship
Etymology
From aunt + -ship.
auntship means the status of being an aunt. Lexicurio rates it Sui generis — a strength score of 90 out of 100.
noun
- The status of being an aunt.“This was a Mrs Archer, to whom I was taught to pay homage, under the appellation of Aunt Archer; the auntship consisting in that her husband had had for a first wife a sister of my grandmother.”