Kabardian
Basleney
Temirgoy
Abzakh
Bzhedugh
Shapsug
Natkhuaja
The consonant system is reconstructed with a four-way phonation contrast in stops and affricates, and a two-way contrast in fricatives.
In the Proto-Circassian there was a series of aspirated consonants that survived in the Shapsug and Bzhedugh dialect while they became plain consonants in the other dialects.
In the Proto-Circassian there was a series of tense consonants that became voiced in the eastern dialects.
In the Proto-Circassian language there exist a palatalized voiced velar stop [ɡʲ] ⟨гь⟩, a palatalized aspirated voiceless velar stop [kʲʰ], a palatalized voiceless velar stop [kʲ] ⟨кь⟩ and a palatalized velar ejective [kʲʼ] ⟨кӏь⟩. The consonants гь [ɡʲ], кь [kʲ] and кӏь [kʲʼ] survive in the Shapsug dialect, in the Besleney dialect and in the Kabardian Uzunyayla dialect.1 In other Circassian dialects they were merged with the palato-alveolar consonants дж [d͡ʒ], ч [t͡ʃ] and кӏ [t͡ʃʼ] respectively.234
Historically, Proto-Circassian had 6 distinct consonants:
Then, in the Abzakh and Kabardian dialects, the affricate postalveolar consonants became fricative:
For example:
But words like кӏьапсэ "rope", кӏьакуэ "short" & кӏьэ "tail" were still pronounced with kʲʼ.
Later on, in the majority of Circassian dialects (both Adyghe and Kabardian dialects), the velar consonants гь [ɡʲ], кь [kʲ] and кӏь [kʲʼ] became palato-alveolar consonants дж [d͡ʒ], ч [t͡ʃ] and кӏ [t͡ʃʼ] respectively. Now words like кӏапсэ "rope", кӏакуэ "short" & кӏэ "tail" were pronounced with t͡ʃʼ.
For example, in the following table, you can see how the words "new" & "tail" are distinct in all dialects except Bzhedug & Chemgui.
The way the affricate postalveolar consonants became fricative in the Abzakh and the Kabardian dialects:
Proto-Circassian had no labiodental fricatives: voiceless labiodental fricative [f] and voiced labiodental fricative [v]. Western Circassian received the labiodental fricatives from one source while Eastern Circassian received from another.
In Western:
In Eastern:
Proto-Circassian had a labialized voiceless velar fricative [xʷ] which survived in the eastern dialects while it became a voiceless labiodental fricative [f] in the western dialects.
Proto-Circassian had a series of labialized postalveolar consonants (t͡ɕʷ, ʑʷ, ɕʷ and ɕʷʼ). These consonants survived in the western dialects while they became labiodental consonants in the eastern dialects.
Schleicher's fable in Proto-Circassian:
χʷǝ č́ʷara-gjǝ χʷǝ ja laśʷam mә q́ˤ:an č́ʷara pǝʎ́an; mǝ χwanǝta k:ʷǝm q:irǝ, mǝ čʷǝχʷa čʷam, mǝ ć̣ǝm pasa mǝš́ʷrǝ. χʷǝ č́ʷara q̇́ˤan: "źǝʁʷǝ sā ǵʷǝ, q:ać̣am ć̣arǝ č́ʷara ḳ́ʷarǝ." č́ʷara q̇́ˤan: "q:́ˤʷa χʷǝ! źǝʁʷǝ š́a ǵʷǝ ć̣arǝ, q:ać̣a, ł́a, č́ʷara laśʷam ʎ́ʷa ḳ́ač̣ʷǝm čǝ-wǝ, χʷiara-gjǝ laśʷam mә q́ˤ:a." nǝ q:́aˤʷasa χʷǝ rǝq:ʷada q:ˤʷan.
χʷǝ č́ʷara-gjǝ
χʷǝ ja laśʷam mә q́ˤ:an
č́ʷara pǝʎ́an;
mǝ χwanǝta k:ʷǝm q:irǝ,
mǝ čʷǝχʷa čʷam,
mǝ ć̣ǝm pasa mǝš́ʷrǝ.
χʷǝ č́ʷara q̇́ˤan:
"źǝʁʷǝ sā ǵʷǝ,
q:ać̣am ć̣arǝ č́ʷara ḳ́ʷarǝ."
č́ʷara q̇́ˤan: "q:́ˤʷa χʷǝ!
źǝʁʷǝ š́a ǵʷǝ ć̣arǝ,
q:ać̣a, ł́a, č́ʷara laśʷam
ʎ́ʷa ḳ́ač̣ʷǝm čǝ-wǝ,
χʷiara-gjǝ laśʷam mә q́ˤ:a."
nǝ q:́aˤʷasa χʷǝ rǝq:ʷada q:ˤʷan.
Консонантная система уляпского говора в сопоставлении с аналогами других диалектов адыгских языков (in Russian) https://www.academia.edu/1888554/%D0%9A%D0%BE%D0%BD%D1%81%D0%BE%D0%BD%D0%B0%D0%BD%D1%82%D0%BD%D0%B0%D1%8F_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0_%D1%83%D0%BB%D1%8F%D0%BF%D1%81%D0%BA%D0%BE%D0%B3%D0%BE_%D0%B3%D0%BE%D0%B2%D0%BE%D1%80%D0%B0_%D0%B2_%D1%81%D0%BE%D0%BF%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B8_%D1%81_%D0%B0%D0%BD%D0%B0%D0%BB%D0%BE%D0%B3%D0%B0%D0%BC%D0%B8_%D0%B4%D1%80%D1%83%D0%B3%D0%B8%D1%85_%D0%B4%D0%B8%D0%B0%D0%BB%D0%B5%D0%BA%D1%82%D0%BE%D0%B2_%D0%B0%D0%B4%D1%8B%D0%B3%D1%81%D0%BA%D0%B8%D1%85_%D1%8F%D0%B7%D1%8B%D0%BA%D0%BE%D0%B2 ↩
Палатализация (смягчение) и аффрикатизация согласных Archived 2015-07-13 at the Wayback Machine (in Russian) http://adygeya-republic.info/adyghe-language/detalno/foneticheskie-izmenenija-soglasnykh/palatalizacija-smjagchenie-i-affrikatizacija-soglasnykh/ ↩
Переднеязычные мягкие шипящие аффрикаты дж, ч, к1 Archived 2015-07-13 at the Wayback Machine (in Russian) http://adygeya-republic.info/adyghe-language/detalno/soglasnye-bukvy/smychnye-soglasnye/perednejazychnye-mjagkie-shipjashchie-affrikaty-dzh-ch-k1/ ↩
Studia Caucasologica I page 11 (in English) http://apsnyteka.org/file/smeets_ubykh_circassian.pdf ↩