Tchwerian
Tchwerian (Wieb-Muts or Reber-Muts) is a Wiebian dialect continuum that includes Modern Standard Wiebian (both the European and the North American varieties). It is often simply called "Wiebian" in-universe.
Historical phonology
Middle Wiebian
ɑ æ e i o ø u y
ɑ: æ: e: ə: i: o: ø: u: y:
ja je i:a ja:
wa wo u:a wa:
ɥa ɥø y:a ɥa:
ai au ay
p pʰ b m mʰ f v w w̃
pˁ pˁʰ bˁ mˁ mʰˁ fˁ vˁ
t tʰ θ ð d n nʰ s z lʰ l nˡ nˡʰ
tˁ tˁʰ θˁ ðˁʰ dˁ nˁ nʰˁ
! !ʰ g! ŋ! ŋʰ! ɧ ɧ̬
!ˁ !ˁʰ g!ˁ ŋ!ˁ ŋʰ!ˁ ɧˁ ɧ̬ˁ
k kʰ g ŋ ŋʰ x ɣ
q qʰ ɢ ɴ ɴʰ χ ʁ
h ʔ ħ ʕ