archconfraternity means A religious confraternity that, as a special concession of the Holy See, can join or affiliate with, and extend privileges to, other similar brotherhoods. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
noun
- A religious confraternity that, as a special concession of the Holy See, can join or affiliate with, and extend privileges to, other similar brotherhoods.