Jabłonkowanie

Jabłonkowanie (Polish: [jabwɔŋkɔˈvaɲɛ]) or siakanie (Polish: [ɕaˈkaɲɛ]) is a regional phonological feature of the Polish language. It consists of the merger of the series of retroflex sibilants /ʂ/, /t͡ʂ/, /ʐ/, /d͡ʐ/ ⟨sz, cz, ż, dż⟩ and palatal sibilants /ɕ/, /t͡ɕ/, /ʑ/, /d͡ʑ/ ⟨ś, ć, ź, dź⟩ into a phonetically-intermediate series [ʃʲ], [t͡ʃʲ], [ʒʲ], [d͡ʒʲ] (sometimes written ⟨śz, ćz, źż, dźż⟩).^[2]

Map of Polish dialects. Dialects with jabłonkowanie are shown in      orange.^[1]

It is named after the Jabłonków subdialect [pl] of Polish (named after the town of Jabłonków in Cieszyn Silesia). It occurs in a number of other Polish subdialects.^[2]

The feature is linked to the process of dispalatalization (reducing of the number of palatalized consonants) similar to the phenomena of mazurzenie and kaszubienie [pl] in other dialects.^[3]