User:SennomaUzanto/Sandbox/Teysoran

Phonotactic
CVCV (PreTB) CVC(V) (ProtoTB)

Nouns
The locative, the allative and the ablative didn't exist in Proto-TB. Instead they came from prepositions.

Final vowel deletion
Final vowels after Sonorants (/m/, /n/, /ɲ/, /ŋ/, /s/ and /r/) were already deleted in Proto-Teyso-Bonsoran.

Changes to Old Teysoran
ɗegi-sora > tegi-sor > tei-so

p t c k > f θ ç x /V_V b d ɟ g > Ø /V_V ɓ ɗ ʄ ɠ > b d ɟ g /V_V

Changes to Middle Teysoran
ɓ ɗ ʄ ɠ > p t c k ɲ > n /#_ ɲ > j /V_V c ɟ > t͡s d͡z j w > Ø /V_V

Changes to Old Bonsoran
ɗegi-sora > ɗeɠi-sor

ɓona-sora > ɓon-sor

Deletion of final vowels after palatals (/j/, /c/, /ɟ/, /ʄ/) and /w/

Stops: ɓ ɗ ʄ ɠ > Ø /V_V b d ɟ g > ɓ ɗ ʄ ɠ /V_V b d ɟ g > p t c k