The vowel exchange "a" to "o"

[Petrasti]

I have a question for everyone. I haven't found anything about this in the forum yet. Is there already a thread in which the a to o (or vice versa) swap has been discussed? (I am of course excluding my previous thread which was not commentable because of my thesis)
Is there already an analysis on this?

Here are a few examples:

Dom dam, chol chal, dol dal, pol pal, lol lal, cheol cheal, kooiin koaiin,
dain doin, Chor char, am om, or ar, oror arar, tol tal, chom cham,
kol kal, chaiin choiin, dar dor, daiin doiin, otchor otchar, taiin toiin,
saiin soiin, c+hol c+hal, aiir oiir, chory chary, dary dory, sal sol,

Vowel swap? As in f(1) = a and f(2) = o, and we consider the function g(1) = f(2) = o, and g(2) = f(1) = a? Am I getting this right?

Hi, unfortunately the equation isn't correct, otherwise this would be a fantastic breakthrough. You will also find words that don't have an a to o exchange. However, there are many of them if you consider a and y to be the same letter, which could simply point to a phonetic issue. (That's just a guess.) Since the Voynich dictionary has several such "peculiarities," you would have to link the details together to further increase the probability of an a to o exchange