Voynichese: a forgotten turkic-aramaic-persian language?

[escape]

Another thing I worried is that, while decoding ch as Х, you decode Sh as Й. This looks not that persuasive, unless we consider a two-step progress where Cyrillic И comes from Greek Η, and Latin H sounds like Cyrillic Х.

It would be great if you could decode labels of stars, using your own system, and explain from there as others have done.

There is a letter J, that sounds like X in Spanish, but like Й in most others. I wrote that it could be a mistake here with this letter.