Szadzenie
Szadzenie (Polish: [ʂaˈd͡zɛɲɛ]) is a regional phonological feature of the Polish language. It consists in replacement or merger of dental affricates /t͡s/, /d͡z/ ⟨c, dz⟩ and dental fricatives /s/, /z/ ⟨s, z⟩ into their retroflex counterparts i.e.