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My work on most of the languages of Sopih at the moment is very sketchy, so for now this page will be rather disorganized, reflecting my ideas about the languages without being definitive. I will edit these pages as the conception develops.

FROM PROTO-NORTHEAST ATONIC TO PROTO-AIPURAN
ai, au > æ
v > β
hl, xl, sl, lh, sw > ɵ
zl, zw > ð
hw, xw > ɸ
rw > βr
lw > ł > ɣ
h > Ø
q > ɣ
g > ɣ
ŋ > g
y > Ø after dentals, except n
w > Ø
ue, ui, iu > ü
oe > oi
eo, io > eu
ao, au > au
ae > ai


Aipura

FROM PROTO-AIPURAN TO PROTO-CONIGIC
PCon sound schema: a, e, i, o, u, ü, au, ai, eu, ā, ē, ī, ō, ū, , āu, āi, ēu, p, b, hw, w, m, t, d, s, th, n, k, g, h, r, l, y
æ > a, > ā
ei, ēi > ī
oi > ai, ōi > āi
ou > au, ōu > āu
ɸ > ʍ
β > w
z > r
ɣ > x
ð > d

FROM PROTO-CONIGIC TO OLD COGRAF
ʍ > f
y > Ø
stops /_# > weakly voiced stops
A stop assimilates to an immediately following consonant
au > eo; āu > éo; ai, āi > á; eu > ua; ēu > úa
ua, úa > ui, úi respectively when followed by a front vowel in the next syllable
y, > diphthongize to io, ío when a or o occurs in the following syllable
y > i, > í when followed by a front vowel; > u, ú otherwise
rn > ln
V/_# > Ø
V:/_# > V

OCon sömpoh, sömpobu, sömpo, sömponi, sömpor, sömpai
OCog suampoch, suampob, suampo, suamponm suampá
Cog suampo, suampob, suampa, suampon, suampor, suampa
yokh > eo

TO OLD CONIGIC
ʍ > h
ɵ > s
ü > i
au, eu, ēu > ū; āu, āi > ā; ai > ī
kt > ć
h/V_ > Ø
i /_RC > ia, e / _RC > ea, a / _RC > ea, o / _RC > oa, u / _RC > ua
R/V_C > Ø
V/_# > Ø
w/_# > f

TO OLD DOEDDER
ʍ > f > v
ɵ > t
e > i, a > e, o > a, u > o, ü > u
ī > əi, ū > əu

In continental Conigic languages, new consonant phonemes arose from consonant clusters. In Cograf, stop clusters became geminate stops, with the first stop assimilating to the second. In Conigic, ć is pronounced as /ts/, and in some dialects is becoming /tʃ/.
*Lektu sekhoi milerarom.

PCon   Lektu sexai milerarom.

Con     Leć sechae milerar.

Cog     Lettu sechá milerad.

In Conigic, a vowel before a liquid and another consonant “broke,” and subsequently the liquid disappeared. A similar change occurred in Bobhzjis.
i > ia / _RC, e > ea / _RC, a > ea / _RC, o > oa / _RC, u > ua / _RC, l, r > Ø / V_C
terban > tearban > teaban > taeban <täban>, Cog. terban