| 12 Northwest Caucasian | 12.2 Proto-Northwest Caucasian to Proto-Circassian | xʲ ɣʲ → ɕ ʑ
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| 12.3 Proto-Northwest Caucasian to Ubykh | xʲ ɣʲ → sʲ zʲ
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| 29 Na-Dene | 29.1 Proto-Na-Dene to Proto-Athabaskan-Eyak | kʲ kʲʼ ɡʲ xʲ → ts tsʼ dz s
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| 29.1.1.1.13 Proto-Athabaskan to Hupa | xʲ → w
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| 29.1.1.1.21 Proto-Eastern Southern Athabaskan to Kiowa Apache | {xʲ,j}ʔ {x,ɣ}ʔ → ∅ h(ʔ) / _#
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| xʲ j → ʃ ʒ
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| 29.1.1.1.22 Proto-Eastern Southern Athabaskan to Jicarilla | xʲ xʔ j ɣʔ → h ʔ ∅ ʔ / E_#
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| xʲ xʔ j ɡʔ → ih iʔ i iʔ / _#
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| xʲʔ jʔ → h ʔ / _#
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| xʲ → s
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| 29.1.1.1.23 Proto-Eastern Southern Athabaskan to Lipan | xʲ j → ʃ ∅ / _#
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| {xʲ,j}ʔ → ∅ / _#
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| xʲ → s
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| 29.1.1.1.25 Proto-Western Southern Athabaskan to Chiricahua | xʲ j → ʃ ∅ / _#
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| {xʲ,j}ʔ → ∅ / _#
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| 29.1.1.1.26 Proto-Western Southern Athabaskan to Mescalero | xʲ j → ʃ ∅ / _#
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| {xʲ,j}ʔ → ∅ / _#
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| 29.1.1.1.27 Proto-Western Southern Athabaskan to Navajo | xʲ(ʔ) j(ʔ) → h ʔ / _#
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| xʲ → s
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| 29.1.1.1.28 Proto-Western Southern Athabaskan to San Carlos | x(ʲ) {j,ɣ} → h ∅ / _#
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| xʲʔ jʔ → h ʔ / _#
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| 29.1.2 Proto-Athabaskan-Eyak to Eyak | kʲ kʲʼ ɡʲ xʲ → ts tsʼ dz {s,ʃ}
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| 29.2 Proto-Na-Dene to Tlingit | xʲ → x
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| 35 Salishan | 35.1.3 Proto-Central Salish to Cowichan Halkomelem | xʲ → ʃ
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| 35.1.5 Proto-Central Salish to Klallam | xʲ → {s,ʃ} (the latter mainly from borrowings?)
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| 35.1.6 Proto-Central Salish to Lushootseed | xʲ → ʃ
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| 35.1.7 Proto-Central Salish to Nooksack | xʲ → ʃ
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| 35.1.9 Proto-Central Salish to Saanich Northern Straits | xʲ → s
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| 35.1.10 Proto-Central Salish to Songish Northern Straits | xʲ → {s,ʃ} (the latter mainly from borrowings?)
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| 35.1.11 Proto-Central Salish to Sooke Northern Straits | xʲ → {s,ʃ} (the latter mainly from borrowings?)
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| 35.1.12 Proto-Central Salish to Pentlatch | xʲ → ʃ
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| 35.1.13 Proto-Central Salish to Sechelt | xʲ → ʃ
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| 35.1.14 Proto-Central Salish to Sqamish | xʲ → ʃ
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| 35.1.15 Proto-Central Salish to Twana | xʲ → ʃ
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